Fatal error: Uncaught Error: Class "Webkul\Admin\Http\Controllers\Controller" not found in /var/www/html/packages/Webkul/Admin/src/Http/Controllers/Catalog/Product/GroupedController.php:9 Stack trace: #0 {main} thrown in /var/www/html/packages/Webkul/Admin/src/Http/Controllers/Catalog/Product/GroupedController.php on line 9