Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Auth\UserProvider" not found in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/laravel/passport/src/PassportUserProvider.php:8 Stack trace: #0 {main} thrown in /home/slsiluser/public_html/service-portal-mobile-responsive/vendor/laravel/passport/src/PassportUserProvider.php on line 8