Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserProviderInterface" not found in /home/steevedfem/ekolaweb/vendor/friendsofsymfony/user-bundle/Security/UserProvider.php:21 Stack trace: #0 {main} thrown in /home/steevedfem/ekolaweb/vendor/friendsofsymfony/user-bundle/Security/UserProvider.php on line 21