Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Auth\StatefulGuard' not found in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Auth\SessionGuard.php:30 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Auth\SessionGuard.php on line 30