Illuminate\Database\QueryException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'visitor_id' cannot be null (SQL: insert into `carts` (`course_id`, `visitor_id`, `amount`, `updated_at`, `created_at`) values (11, ?, 0, 2024-03-28 23:48:08, 2024-03-28 23:48:08)) in file /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 742 #0 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Connection.php(702): Illuminate\Database\Connection->runQueryCallback() #1 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Connection.php(528): Illuminate\Database\Connection->run() #2 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Connection.php(480): Illuminate\Database\Connection->statement() #3 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Query/Processors/Processor.php(32): Illuminate\Database\Connection->insert() #4 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(3246): Illuminate\Database\Query\Processors\Processor->processInsertGetId() #5 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(1745): Illuminate\Database\Query\Builder->insertGetId() #6 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1220): Illuminate\Database\Eloquent\Builder->__call() #7 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1185): Illuminate\Database\Eloquent\Model->insertAndSetId() #8 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(1026): Illuminate\Database\Eloquent\Model->performInsert() #9 /home/xdmxxn8ojjvg/public_html/app/Http/Controllers/Controller.php(101): Illuminate\Database\Eloquent\Model->save() #10 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): App\Http\Controllers\Controller->addToCart() #11 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(45): Illuminate\Routing\Controller->callAction() #12 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(261): Illuminate\Routing\ControllerDispatcher->dispatch() #13 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(204): Illuminate\Routing\Route->runController() #14 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(725): Illuminate\Routing\Route->run() #15 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Routing\Router->Illuminate\Routing\{closure}() #16 /home/xdmxxn8ojjvg/public_html/app/Http/Middleware/VisitorPass.php(25): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #17 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\Http\Middleware\VisitorPass->handle() #18 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #19 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Routing\Middleware\SubstituteBindings->handle() #20 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #21 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle() #22 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #23 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\View\Middleware\ShareErrorsFromSession->handle() #24 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #25 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest() #26 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Session\Middleware\StartSession->handle() #27 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #28 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle() #29 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #30 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\EncryptCookies->handle() #31 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #32 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(726): Illuminate\Pipeline\Pipeline->then() #33 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(703): Illuminate\Routing\Router->runRouteWithinStack() #34 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(667): Illuminate\Routing\Router->runRoute() #35 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(656): Illuminate\Routing\Router->dispatchToRoute() #36 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(167): Illuminate\Routing\Router->dispatch() #37 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}() #38 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #39 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle() #40 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle() #41 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #42 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle() #43 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\TrimStrings->handle() #44 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #45 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle() #46 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #47 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle() #48 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #49 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Http\Middleware\HandleCors->handle() #50 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #51 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Http\Middleware\TrustProxies->handle() #52 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #53 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(142): Illuminate\Pipeline\Pipeline->then() #54 /home/xdmxxn8ojjvg/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter() #55 /home/xdmxxn8ojjvg/public_html/public/index.php(52): Illuminate\Foundation\Http\Kernel->handle() #56 {main}