The following error occurred:

exception 'Zend_View_Exception' with message 'Invalid value passed to append; please use appendMeta()' in /var/www/virtual/direct-source.co.uk/library/Zend/View/Helper/HeadMeta.php:197 Stack trace: #0 /var/www/virtual/direct-source.co.uk/library/Zend/View/Helper/HeadMeta.php(160): Zend_View_Helper_HeadMeta->append(Object(stdClass)) #1 [internal function]: Zend_View_Helper_HeadMeta->__call('appendName', Array) #2 /var/www/virtual/direct-source.co.uk/application/default/views/scripts/news/article.phtml(13): Zend_View_Helper_HeadMeta->appendName('description', NULL) #3 /var/www/virtual/direct-source.co.uk/library/Zend/View.php(107): include('/var/www/virtua...') #4 /var/www/virtual/direct-source.co.uk/library/Zend/View/Abstract.php(787): Zend_View->_run('/var/www/virtua...') #5 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Action/Helper/ViewRenderer.php(902): Zend_View_Abstract->render('news/article.ph...') #6 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Action/Helper/ViewRenderer.php(923): Zend_Controller_Action_Helper_ViewRenderer->renderScript('news/article.ph...', NULL) #7 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Action/Helper/ViewRenderer.php(962): Zend_Controller_Action_Helper_ViewRenderer->render() #8 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Action/HelperBroker.php(276): Zend_Controller_Action_Helper_ViewRenderer->postDispatch() #9 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Action.php(513): Zend_Controller_Action_HelperBroker->notifyPostDispatch() #10 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Dispatcher/Standard.php(285): Zend_Controller_Action->dispatch('articleAction') #11 /var/www/virtual/direct-source.co.uk/library/Zend/Controller/Front.php(934): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #12 /var/www/virtual/direct-source.co.uk/application/bootstrap.php(36): Zend_Controller_Front->dispatch() #13 /var/www/virtual/direct-source.co.uk/htdocs/index.php(8): require('/var/www/virtua...') #14 {main}