Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/go0123/public_html/app/Http/Controllers/Api/Teacher/TeacherOnlineExamController.php:18 Stack trace: #0 {main} thrown in /home/go0123/public_html/app/Http/Controllers/Api/Teacher/TeacherOnlineExamController.php on line 18