Fatal error: Uncaught Error: Class "TYPO3\CMS\Extbase\Service\ExtensionService" not found in /var/www/html/dev.hallescherfc.de/vendor/georgringer/news/Classes/Xclass/ExtensionServiceXclassed.php:17 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/georgringer/news/Classes/Xclass/ExtensionServiceXclassed.php on line 17