Omeka a rencontré une erreur

Zend_Http_Client_Adapter_Exception

Unable to Connect to ssl://mauriac-en-ligne.u-bordeaux-montaigne.fr:443. Error #0: php_network_getaddresses: getaddrinfo failed: Name or service not known

Zend_Http_Client_Adapter_Exception: Unable to Connect to ssl://mauriac-en-ligne.u-bordeaux-montaigne.fr:443. Error #0: php_network_getaddresses: getaddrinfo failed: Name or service not known in /sites/mauriaconline/www/web_main/application/libraries/Zend/Http/Client/Adapter/Socket.php:235
Stack trace:
#0 /sites/mauriaconline/www/web_main/application/libraries/Zend/Http/Client.php(1073): Zend_Http_Client_Adapter_Socket->connect()
#1 /sites/mauriaconline/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(671): Zend_Http_Client->request()
#2 /sites/mauriaconline/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(465): Scripto_Service_MediaWiki->_request()
#3 /sites/mauriaconline/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(160): Scripto_Service_MediaWiki->query()
#4 /sites/mauriaconline/www/web_main/plugins/Scripto/libraries/Scripto.php(219): Scripto_Service_MediaWiki->getUserInfo()
#5 /sites/mauriaconline/www/web_main/plugins/Scripto/libraries/Scripto.php(88): Scripto->setUserInfo()
#6 /sites/mauriaconline/www/web_main/plugins/Scripto/ScriptoPlugin.php(369): Scripto->__construct()
#7 /sites/mauriaconline/www/web_main/plugins/Scripto/controllers/IndexController.php(238): ScriptoPlugin::getScripto()
#8 /sites/mauriaconline/www/web_main/application/libraries/Zend/Controller/Action.php(516): Scripto_IndexController->revisionAction()
#9 /sites/mauriaconline/www/web_main/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch()
#10 /sites/mauriaconline/www/web_main/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch()
#11 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#12 /sites/mauriaconline/www/web_main/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#13 /sites/mauriaconline/www/web_main/application/libraries/Omeka/Application.php(73): Zend_Application->run()
#14 /sites/mauriaconline/www/web_main/index.php(23): Omeka_Application->run()
#15 {main}