Fatal error: Uncaught Error: Class 'Neos\FluidAdaptor\Core\ViewHelper\AbstractTagBasedViewHelper' not found in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Media.Browser/Classes/ViewHelpers/ThumbnailViewHelper.php:33 Stack trace: #0 {main} thrown in /var/www/vhosts/www.thomas-bartholomaeus.de/content/neoscms/Packages/Application/Neos.Media.Browser/Classes/ViewHelpers/ThumbnailViewHelper.php on line 33