Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Auth\UserProvider" not found in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Auth/DatabaseUserProvider.php:12 Stack trace: #0 {main} thrown in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Auth/DatabaseUserProvider.php on line 12