Fatal error: Uncaught Error: Class 'Neos\FluidAdaptor\Core\ViewHelper\AbstractViewHelper' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Neos/Classes/ViewHelpers/Backend/DocumentBreadcrumbPathViewHelper.php:21 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Neos/Classes/ViewHelpers/Backend/DocumentBreadcrumbPathViewHelper.php on line 21