Omeka a rencontré une erreur

Zend_Http_Client_Exception

Unable to read response, or response is empty

exception 'Zend_Http_Client_Exception' with message 'Unable to read response, or response is empty' in /sites/transcri/www/web_main/application/libraries/Zend/Http/Client.php:1093
Stack trace:
#0 /sites/transcri/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(708): Zend_Http_Client->request('POST')
#1 /sites/transcri/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(457): Scripto_Service_MediaWiki->_request('parse', Array)
#2 /sites/transcri/www/web_main/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(401): Scripto_Service_MediaWiki->parse(Array)
#3 /sites/transcri/www/web_main/plugins/Scripto/libraries/Scripto/Document.php(438): Scripto_Service_MediaWiki->getLatestRevisionHtml('Talk:.Mjk.MjUwN...')
#4 /sites/transcri/www/web_main/plugins/Scripto/controllers/IndexController.php(222): Scripto_Document->getTalkPageHtml()
#5 /sites/transcri/www/web_main/application/libraries/Zend/Controller/Action.php(516): Scripto_IndexController->transcribeAction()
#6 /sites/transcri/www/web_main/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('transcribeActio...')
#7 /sites/transcri/www/web_main/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#8 /sites/transcri/www/web_main/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#9 /sites/transcri/www/web_main/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#10 /sites/transcri/www/web_main/application/libraries/Omeka/Application.php(79): Zend_Application->run()
#11 /sites/transcri/www/web_main/index.php(24): Omeka_Application->run()
#12 {main}