Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserCheckerInterface" not found in /home/birdezgi/public_html/web/bfbgsym/src/Security/UserChecker.php:13 Stack trace: #0 {main} thrown in /home/birdezgi/public_html/web/bfbgsym/src/Security/UserChecker.php on line 13