Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Core\User\UserCheckerInterface" not found in /home2/cifranco/public_html/monotitnewtest/src/Domain/Identity/Security/IdentityUserChecker.php:13 Stack trace: #0 {main} thrown in /home2/cifranco/public_html/monotitnewtest/src/Domain/Identity/Security/IdentityUserChecker.php on line 13