Fatal error: Uncaught Error: Interface 'TYPO3\CMS\Backend\Form\FormDataProviderInterface' not found in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/news/Classes/Backend/FormDataProvider/NewsFlexFormManipulation.php:17
Stack trace:
#0 {main}
  thrown in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/news/Classes/Backend/FormDataProvider/NewsFlexFormManipulation.php on line 17