[2026-05-03 05:11:25] local.ERROR: SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 3hkNpzWpuTKxYJT606EJ3PmYmuCqyh53kI0uMkwM limit 1) {"exception":"[object] (Illuminate\\Database\\QueryException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 3hkNpzWpuTKxYJT606EJ3PmYmuCqyh53kI0uMkwM limit 1) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php:825)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#4 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#49 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#50 {main}

[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:66)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(66): PDO->__construct()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(44): Illuminate\\Database\\Connectors\\Connector->createPdoConnection()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\\Database\\Connectors\\Connector->createConnection()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(185): Illuminate\\Database\\Connectors\\MySqlConnector->connect()
#4 [internal function]: Illuminate\\Database\\Connectors\\ConnectionFactory->Illuminate\\Database\\Connectors\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1231): call_user_func()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(512): Illuminate\\Database\\Connection->getPdo()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(407): Illuminate\\Database\\Connection->getPdoForSelect()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(812): Illuminate\\Database\\Connection->Illuminate\\Database\\{closure}()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#49 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#50 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#51 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#52 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#53 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#54 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#55 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#56 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#57 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#58 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#59 {main}
"} 
[2026-05-03 05:11:32] local.ERROR: SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 1qWIgQNZgOw5xPIc7smyVkAxtBE4lsMFLl9xgRVW limit 1) {"exception":"[object] (Illuminate\\Database\\QueryException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 1qWIgQNZgOw5xPIc7smyVkAxtBE4lsMFLl9xgRVW limit 1) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php:825)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#4 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#49 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#50 {main}

[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:66)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(66): PDO->__construct()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(44): Illuminate\\Database\\Connectors\\Connector->createPdoConnection()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\\Database\\Connectors\\Connector->createConnection()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(185): Illuminate\\Database\\Connectors\\MySqlConnector->connect()
#4 [internal function]: Illuminate\\Database\\Connectors\\ConnectionFactory->Illuminate\\Database\\Connectors\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1231): call_user_func()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(512): Illuminate\\Database\\Connection->getPdo()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(407): Illuminate\\Database\\Connection->getPdoForSelect()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(812): Illuminate\\Database\\Connection->Illuminate\\Database\\{closure}()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#49 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#50 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#51 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#52 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#53 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#54 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#55 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#56 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#57 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#58 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#59 {main}
"} 
[2026-05-12 07:59:57] local.ERROR: SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 8sRlNvY42WKq2eN46PKczurVRfG2Ods6lMIGxURu limit 1) {"exception":"[object] (Illuminate\\Database\\QueryException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) (Connection: mysql, SQL: select * from `sessions` where `id` = 8sRlNvY42WKq2eN46PKczurVRfG2Ods6lMIGxURu limit 1) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php:825)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#4 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#49 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#50 {main}

[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Can't connect to local server through socket '/var/lib/mysql/mysql.sock' (2) at /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php:66)
[stacktrace]
#0 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(66): PDO->__construct()
#1 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(44): Illuminate\\Database\\Connectors\\Connector->createPdoConnection()
#2 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\\Database\\Connectors\\Connector->createConnection()
#3 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(185): Illuminate\\Database\\Connectors\\MySqlConnector->connect()
#4 [internal function]: Illuminate\\Database\\Connectors\\ConnectionFactory->Illuminate\\Database\\Connectors\\{closure}()
#5 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1231): call_user_func()
#6 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(512): Illuminate\\Database\\Connection->getPdo()
#7 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(407): Illuminate\\Database\\Connection->getPdoForSelect()
#8 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(812): Illuminate\\Database\\Connection->Illuminate\\Database\\{closure}()
#9 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(779): Illuminate\\Database\\Connection->runQueryCallback()
#10 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Connection.php(398): Illuminate\\Database\\Connection->run()
#11 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3106): Illuminate\\Database\\Connection->select()
#12 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3091): Illuminate\\Database\\Query\\Builder->runSelect()
#13 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3676): Illuminate\\Database\\Query\\Builder->Illuminate\\Database\\Query\\{closure}()
#14 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3090): Illuminate\\Database\\Query\\Builder->onceWithColumns()
#15 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(343): Illuminate\\Database\\Query\\Builder->get()
#16 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3013): Illuminate\\Database\\Query\\Builder->first()
#17 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php(97): Illuminate\\Database\\Query\\Builder->find()
#18 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(117): Illuminate\\Session\\DatabaseSessionHandler->read()
#19 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(105): Illuminate\\Session\\Store->readFromHandler()
#20 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Store.php(89): Illuminate\\Session\\Store->loadSession()
#21 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(147): Illuminate\\Session\\Store->start()
#22 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Support/helpers.php(399): Illuminate\\Session\\Middleware\\StartSession->Illuminate\\Session\\Middleware\\{closure}()
#23 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(144): tap()
#24 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(116): Illuminate\\Session\\Middleware\\StartSession->startSession()
#25 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest()
#26 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Session\\Middleware\\StartSession->handle()
#27 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#28 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle()
#29 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(75): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#30 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle()
#31 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#32 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(807): Illuminate\\Pipeline\\Pipeline->then()
#33 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(786): Illuminate\\Routing\\Router->runRouteWithinStack()
#34 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(750): Illuminate\\Routing\\Router->runRoute()
#35 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Routing/Router.php(739): Illuminate\\Routing\\Router->dispatchToRoute()
#36 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(201): Illuminate\\Routing\\Router->dispatch()
#37 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(170): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}()
#38 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#39 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#40 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle()
#41 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#42 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(51): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle()
#43 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle()
#44 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#45 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\ValidatePostSize->handle()
#46 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(110): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#47 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle()
#48 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#49 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\HandleCors->handle()
#50 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(58): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#51 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Http\\Middleware\\TrustProxies->handle()
#52 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/InvokeDeferredCallbacks.php(22): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#53 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(209): Illuminate\\Foundation\\Http\\Middleware\\InvokeDeferredCallbacks->handle()
#54 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(127): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}()
#55 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Pipeline\\Pipeline->then()
#56 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(145): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter()
#57 /home/themsci/os4u.bd/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(1220): Illuminate\\Foundation\\Http\\Kernel->handle()
#58 /home/themsci/os4u.bd/public/index.php(17): Illuminate\\Foundation\\Application->handleRequest()
#59 {main}
"}