Nachstehende Fehlermeldung erscheint beim Aufruf des Links aus der Email zum Beitrag:

Fatal error: Uncaught exception 'TYPO3\CMS\Extbase\Mvc\Controller\Exception\RequiredArgumentMissingException' with message 'Required argument "topic" is not set for Tx_MmForum_Controller_TopicController->show.' in /var/www/kd/connect.allplan.com/www/http/typo3/sysext/extbase/Classes/Mvc/Controller/AbstractController.php:425 Stack trace: #0 /var/www/kd/connect.allplan.com/www/http/typo3/sysext/extbase/Classes/Mvc/Controller/ActionController.php(150): TYPO3\CMS\Extbase\Mvc\Controller\AbstractController->mapRequestArgumentsToControllerArguments() #1 /var/www/kd/connect.allplan.com/www/http/typo3/sysext/extbase/Classes/Mvc/Dispatcher.php(69): TYPO3\CMS\Extbase\Mvc\Controller\ActionController->processRequest(Object(TYPO3\CMS\Extbase\Mvc\Web\Request), Object(TYPO3\CMS\Extbase\Mvc\Web\Response)) #2 /var/www/kd/connect.allplan.com/www/http/typo3/sysext/extbase/Classes/Mvc/Web/FrontendRequestHandler.php(56): TYPO3\CMS\Extbase\Mvc\Dispatcher->dispatch(Object(TYPO3\CMS\Extbase\Mvc\Web\Request), Object(TYPO3\CMS\Extbase\Mvc\Web\Respo in /var/www/kd/connect.allplan.com/www/http/typo3/sysext/extbase/Classes/Mvc/Controller/AbstractController.php on line 425