Fatal error: Uncaught Error: Class "Symfony\Component\Templating\Helper\Helper" not found in /home/dbdevweblamp/public_html/vendor/symfony/security-bundle/Templating/Helper/LogoutUrlHelper.php:26 Stack trace: #0 {main} thrown in /home/dbdevweblamp/public_html/vendor/symfony/security-bundle/Templating/Helper/LogoutUrlHelper.php on line 26