Fatal error: Uncaught TYPO3\CMS\Core\Error\Exception: PHP Warning: Illegal string offset 'kategorie' in /var/www/html/typo3conf/ext/gastro/Classes/Controller/BetriebController.php line 64 in /var/www/html/typo3/sysext/core/Classes/Error/ErrorHandler.php:124 Stack trace: #0 /var/www/html/typo3conf/ext/gastro/Classes/Controller/BetriebController.php(64): TYPO3\CMS\Core\Error\ErrorHandler->handleError() #1 /var/www/html/typo3/sysext/extbase/Classes/Mvc/Controller/ActionController.php(318): VG\Gastro\Controller\BetriebController->filterAction() #2 /var/www/html/typo3/sysext/extbase/Classes/Mvc/Controller/ActionController.php(167): TYPO3\CMS\Extbase\Mvc\Controller\ActionController->callActionMethod() #3 /var/www/html/typo3/sysext/extbase/Classes/Mvc/Dispatcher.php(73): TYPO3\CMS\Extbase\Mvc\Controller\ActionController->processRequest() #4 /var/www/html/typo3/sysext/extbase/Classes/Mvc/Web/FrontendRequestHandler.php(92): TYPO3\CMS\Extbase\Mvc\Dispatcher->dispatch() #5 /var/www/html/typo3/sysext/extbase/Classes/Core/Bootstrap.ph in /var/www/html/typo3/sysext/core/Classes/Error/ErrorHandler.php on line 124