Ensayo fuera de clase

Fatal error: Uncaught Error: Class "DOMDocument" not found in /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Xml/Security.php:63 Stack trace: #0 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Xml/Security.php(129): Zend_Xml_Security::scan() #1 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Locale/Data.php(160): Zend_Xml_Security::scanFile() #2 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Locale/Data.php(232): Zend_Locale_Data::_findRoute() #3 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Locale/Data.php(1137): Zend_Locale_Data::_getFile() #4 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Date.php(843): Zend_Locale_Data::getContent() #5 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Date.php(580): Zend_Date->_parseIsoToDate() #6 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Date.php(466): Zend_Date->_toToken() #7 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/globals.php(1015): Zend_Date->toString() #8 /var/www/bga.uniandes.edu.co/html/catalogo/application/models/Item.php(491): format_date() #9 /var/www/bga.uniandes.edu.co/html/catalogo/application/models/Item.php(202): Item->getCitation() #10 /var/www/bga.uniandes.edu.co/html/catalogo/application/views/helpers/Metadata.php(169): Item->getProperty() #11 /var/www/bga.uniandes.edu.co/html/catalogo/application/views/helpers/Metadata.php(144): Omeka_View_Helper_Metadata->_getRecordMetadata() #12 /var/www/bga.uniandes.edu.co/html/catalogo/application/views/helpers/Metadata.php(73): Omeka_View_Helper_Metadata->_getText() #13 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/View/Abstract.php(350): Omeka_View_Helper_Metadata->metadata() #14 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/globals.php(2082): Zend_View_Abstract->__call() #15 /var/www/bga.uniandes.edu.co/html/catalogo/themes/minimo/items/show.php(175): metadata() #16 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Omeka/View.php(114): include('...') #17 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/View/Abstract.php(889): Omeka_View->_run() #18 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(912): Zend_View_Abstract->render() #19 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(933): Zend_Controller_Action_Helper_ViewRenderer->renderScript() #20 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(972): Zend_Controller_Action_Helper_ViewRenderer->render() #21 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch() #22 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch() #23 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch() #24 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch() #25 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(106): Zend_Controller_Front->dispatch() #26 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run() #27 /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Omeka/Application.php(73): Zend_Application->run() #28 /var/www/bga.uniandes.edu.co/html/catalogo/index.php(23): Omeka_Application->run() #29 {main} thrown in /var/www/bga.uniandes.edu.co/html/catalogo/application/libraries/Zend/Xml/Security.php on line 63