Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/karnava/public_html/center.karnavati.in/app/Http/Controllers/certificate_controller.php:12 Stack trace: #0 {main} thrown in /home/karnava/public_html/center.karnavati.in/app/Http/Controllers/certificate_controller.php on line 12