Fatal error: Uncaught Error: Class "Symfony\Component\Security\Core\Authentication\Token\AbstractToken" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/security-http/Authenticator/Token/PostAuthenticationToken.php:17 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/security-http/Authenticator/Token/PostAuthenticationToken.php on line 17