Fatal error: Uncaught Error: Class 'TYPO3\CMS\Install\Updates\AbstractUpdate' not found in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/dce/Classes/Updates/AbstractUpdate.php:15
Stack trace:
#0 {main}
  thrown in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/dce/Classes/Updates/AbstractUpdate.php on line 15