Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/lessonplannercom/public_html/backend/app/Http/Controllers/LessonActivitiesController.php:13 Stack trace: #0 {main} thrown in /home/lessonplannercom/public_html/backend/app/Http/Controllers/LessonActivitiesController.php on line 13