Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Foundation\MaintenanceMode" not found in C:\xampp\htdocs\adminlte3\vendor\laravel\framework\src\Illuminate\Foundation\FileBasedMaintenanceMode 2.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\adminlte3\vendor\laravel\framework\src\Illuminate\Foundation\FileBasedMaintenanceMode 2.php on line 7