Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in /home/custompr/psle.custompropackaging.com/app/Http/Controllers/Admin/StudyNoteController.php:12 Stack trace: #0 {main} thrown in /home/custompr/psle.custompropackaging.com/app/Http/Controllers/Admin/StudyNoteController.php on line 12