Fatal error: Uncaught Error: Class "Encore\Admin\Widgets\Widget" not found in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\src\Widgets\Tab.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\src\Widgets\Tab.php on line 8