Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in /home/wwiwil/apps/iwill-laravel/app/Http/Controllers/Api/LessonController.php:21 Stack trace: #0 {main} thrown in /home/wwiwil/apps/iwill-laravel/app/Http/Controllers/Api/LessonController.php on line 21