Warning: include_once(DOMDocument.php): failed to open stream: No such file or directory in /var/www/westdc.westgis.ac.cn/include/Zend/Loader.php on line 134

Warning: include_once(): Failed opening 'DOMDocument.php' for inclusion (include_path='.:/var/www/www.heihedata.org/htdocs/../include/:../application/models:../application/module:../application/default/controllers:.:/usr/share/php') in /var/www/westdc.westgis.ac.cn/include/Zend/Loader.php on line 134

Fatal error: Uncaught Error: Class 'DOMDocument' not found in /var/www/westdc.westgis.ac.cn/include/Zend/Feed/Abstract.php:97 Stack trace: #0 /var/www/westdc.westgis.ac.cn/include/Zend/Feed.php(390): Zend_Feed_Abstract->__construct(NULL, NULL, Object(Zend_Feed_Builder)) #1 /var/www/www.heihedata.org/application/default/controllers/DataController.php(466): Zend_Feed::importArray(Array, 'rss') #2 /var/www/westdc.westgis.ac.cn/include/Zend/Controller/Action.php(516): DataController->feedAction() #3 /var/www/westdc.westgis.ac.cn/include/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('feedAction') #4 /var/www/westdc.westgis.ac.cn/include/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #5 /var/www/www.heihedata.org/htdocs/index.php(55): Zend_Controller_Front->dispatch() #6 {main} thrown in /var/www/westdc.westgis.ac.cn/include/Zend/Feed/Abstract.php on line 97