Fatal error: Uncaught Error: Interface 'FOS\UserBundle\Model\GroupInterface' not found in /home/almasai/www/people/_old_site/vendor/bundles/FOS/UserBundle/Model/Group.php:17 Stack trace: #0 {main} thrown in /home/almasai/www/people/_old_site/vendor/bundles/FOS/UserBundle/Model/Group.php on line 17