Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserProviderInterface" not found in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Security/User/ContaoUserProvider.php:30 Stack trace: #0 {main} thrown in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Security/User/ContaoUserProvider.php on line 30