Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\laragon\www\Dhaka-Imperial-College\app\Http\Controllers\Backend\SubFolderController.php:12 Stack trace: #0 {main} thrown in C:\laragon\www\Dhaka-Imperial-College\app\Http\Controllers\Backend\SubFolderController.php on line 12