Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/wwwbynano/public_html/techapp/laravel_application/app/Http/Controllers/API/ProductOrderAPIController.php:21 Stack trace: #0 {main} thrown in /home/wwwbynano/public_html/techapp/laravel_application/app/Http/Controllers/API/ProductOrderAPIController.php on line 21