Fatal error: Uncaught Error: Class "Symfony\Component\Security\Core\Authentication\Token\AbstractToken" not found in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Security/Authentication/Token/FrontendPreviewToken.php:18 Stack trace: #0 {main} thrown in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Security/Authentication/Token/FrontendPreviewToken.php on line 18