Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Guard\AbstractGuardAuthenticator' not found in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/src/Security/Authenticator/SocialAuthenticator.php:26 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/knpuniversity/oauth2-client-bundle/src/Security/Authenticator/SocialAuthenticator.php on line 26