Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/rwebserver/public_html/demo.rwebserver.com/alegria/app/Http/Controllers/Backend/FirstBookController.php:13 Stack trace: #0 {main} thrown in /home/rwebserver/public_html/demo.rwebserver.com/alegria/app/Http/Controllers/Backend/FirstBookController.php on line 13