Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in /home/caistbuw/public_html/app/Http/Controllers/CombinedPurchaseReturnController.php:15 Stack trace: #0 {main} thrown in /home/caistbuw/public_html/app/Http/Controllers/CombinedPurchaseReturnController.php on line 15