Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in /home/alkhabee/public_html/platform.alkhabeer.org/app/Http/Controllers/ExamController.php:18 Stack trace: #0 {main} thrown in /home/alkhabee/public_html/platform.alkhabeer.org/app/Http/Controllers/ExamController.php on line 18