Fatal error: Uncaught Error: Interface "FOS\UserBundle\Model\GroupInterface" not found in /home/kakabapu/public_html/mysticker.kakabapu.com/vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Model/Group.php:17 Stack trace: #0 {main} thrown in /home/kakabapu/public_html/mysticker.kakabapu.com/vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Model/Group.php on line 17