Fatal error: Uncaught exception 'Zend_View_Exception' with message 'Invalid value passed to append; please use appendMeta()' in /var/www/zvk_de/subdomains/new/page/library/Zend/View/Helper/HeadMeta.php:231 Stack trace: #0 /var/www/zvk_de/subdomains/new/page/library/Zend/View/Helper/HeadMeta.php(164): Zend_View_Helper_HeadMeta->append(Object(stdClass)) #1 /var/www/zvk_de/subdomains/new/page/application/controllers/GlossarController.php(22): Zend_View_Helper_HeadMeta->__call('appendName', Array) #2 /var/www/zvk_de/subdomains/new/page/application/controllers/GlossarController.php(22): Zend_View_Helper_HeadMeta->appendName('description', NULL) #3 /var/www/zvk_de/subdomains/new/page/library/Zend/Controller/Action.php(516): GlossarController->indexAction() #4 /var/www/zvk_de/subdomains/new/page/library/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch('indexAction') #5 /var/www/zvk_de/subdomains/new/page/library/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zen in /var/www/zvk_de/subdomains/new/page/library/Zend/View/Helper/HeadMeta.php on line 231