Fatal error: Uncaught Error: Call to a member function getDate() on boolean in /var/www/web22757637/html/ifm-bonn.org/typo3conf/ext/ifm_studies/Classes/Controller/StudyController.php:115 Stack trace: #0 [internal function]: Tx_IfmStudies_Controller_StudyController->listcategoryAction() #1 /var/www/web22757637/files/typo3sources/typo3_src-8.7.30/typo3/sysext/extbase/Classes/Mvc/Controller/ActionController.php(316): call_user_func_array(Array, Array) #2 /var/www/web22757637/files/typo3sources/typo3_src-8.7.30/typo3/sysext/extbase/Classes/Mvc/Controller/ActionController.php(176): TYPO3\CMS\Extbase\Mvc\Controller\ActionController->callActionMethod() #3 /var/www/web22757637/files/typo3sources/typo3_src-8.7.30/typo3/sysext/extbase/Classes/Mvc/Dispatcher.php(85): TYPO3\CMS\Extbase\Mvc\Controller\ActionController->processRequest(Object(TYPO3\CMS\Extbase\Mvc\Web\Request), Object(TYPO3\CMS\Extbase\Mvc\Web\Response)) #4 /var/www/web22757637/files/typo3sources/typo3_src-8.7.30/typo3/sysext/extbase/Classes/Mvc/Web/FrontendRequestHandl in /var/www/web22757637/html/ifm-bonn.org/typo3conf/ext/ifm_studies/Classes/Controller/StudyController.php on line 115