Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Auth\UserProvider' not found in C:\Apache24\htdocs\vendor.old2\laravel\framework\src\Illuminate\Auth\DatabaseUserProvider.php:13 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\vendor.old2\laravel\framework\src\Illuminate\Auth\DatabaseUserProvider.php on line 13