Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in /home/edomesoft/public_html/pos/umpos/app/Http/Controllers/SellReturnController.php:19 Stack trace: #0 {main} thrown in /home/edomesoft/public_html/pos/umpos/app/Http/Controllers/SellReturnController.php on line 19