Fatal error: Uncaught Error: Call to a member function render() on null in /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/plugins/Corrections/controllers/IndexController.php:25 Stack trace: #0 /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/application/libraries/Zend/Controller/Action.php(516): Corrections_IndexController->addAction() #1 /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('addAction') #2 /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #3 /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch() #4 /home/cli in /home/clients/2a8d1a13be29853f9bcece3709242f39/sites/osnabrueck.nghm-uos.de/plugins/Corrections/controllers/IndexController.php on line 25