Fatal error: Uncaught Error: Class "TYPO3\CMS\Scheduler\Task\AbstractTask" not found in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-scheduler/Classes/Task/FileStorageIndexingTask.php:27 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/typo3/cms-scheduler/Classes/Task/FileStorageIndexingTask.php on line 27