Warning: Use of undefined constant PATH_site - assumed 'PATH_site' (this will throw an Error in a future version of PHP) in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/realurl/ext_localconf.php on line 34

Fatal error: Uncaught Error: Class 'TYPO3\CMS\Core\Utility\ExtensionManagementUtility' not found in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/realurl/ext_localconf.php:72
Stack trace:
#0 {main}
  thrown in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/realurl/ext_localconf.php on line 72