Fatal error: Uncaught Error: Class "TYPO3\CMS\Fluid\ViewHelpers\Be\AbstractBackendViewHelper" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-beuser/Classes/ViewHelpers/SpriteIconForRecordViewHelper.php:31 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-beuser/Classes/ViewHelpers/SpriteIconForRecordViewHelper.php on line 31