Omeka has encountered an error

Zend_Http_Client_Adapter_Exception

Unable to Connect to tcp://chnmdev.gmu.edu:80. Error #110: Connection timed out

Zend_Http_Client_Adapter_Exception: Unable to Connect to tcp://chnmdev.gmu.edu:80. Error #110: Connection timed out in /websites/islampersp/www/rpi/application/libraries/Zend/Http/Client/Adapter/Socket.php:235
Stack trace:
#0 /websites/islampersp/www/rpi/application/libraries/Zend/Http/Client.php(1073): Zend_Http_Client_Adapter_Socket->connect('tcp://chnmdev.g...', 80, false)
#1 /websites/islampersp/www/rpi/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(661): Zend_Http_Client->request('POST')
#2 /websites/islampersp/www/rpi/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(462): Scripto_Service_MediaWiki->_request('query', Array)
#3 /websites/islampersp/www/rpi/plugins/Scripto/libraries/Scripto/Service/MediaWiki.php(157): Scripto_Service_MediaWiki->query(Array)
#4 /websites/islampersp/www/rpi/plugins/Scripto/libraries/Scripto.php(214): Scripto_Service_MediaWiki->getUserInfo('groups|rights')
#5 /websites/islampersp/www/rpi/plugins/Scripto/libraries/Scripto.php(83): Scripto->setUserInfo()
#6 /websites/islampersp/www/rpi/plugins/Scripto/ScriptoPlugin.php(406): Scripto->__construct(Object(ScriptoAdapterOmeka), Array)
#7 /websites/islampersp/www/rpi/plugins/Scripto/ScriptoPlugin.php(322): ScriptoPlugin::getScripto()
#8 /websites/islampersp/www/rpi/plugins/Scripto/ScriptoPlugin.php(281): ScriptoPlugin->_appendToItemsShow()
#9 /websites/islampersp/www/rpi/application/libraries/Omeka/Plugin/Broker.php(154): ScriptoPlugin->hookPublicItemsShow(Array)
#10 /websites/islampersp/www/rpi/application/libraries/globals.php(188): Omeka_Plugin_Broker->callHook('public_items_sh...', Array)
#11 /websites/islampersp/www/rpi/themes/rpi/items/show.php(76): fire_plugin_hook('public_items_sh...', Array)
#12 /websites/islampersp/www/rpi/application/libraries/Omeka/View.php(114): include('/websites/islam...')
#13 /websites/islampersp/www/rpi/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('/websites/islam...')
#14 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(912): Zend_View_Abstract->render(NULL)
#15 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(933): Zend_Controller_Action_Helper_ViewRenderer->renderScript('items/show.php', NULL)
#16 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(972): Zend_Controller_Action_Helper_ViewRenderer->render()
#17 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch()
#18 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch()
#19 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('showAction')
#20 /websites/islampersp/www/rpi/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#21 /websites/islampersp/www/rpi/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#22 /websites/islampersp/www/rpi/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#23 /websites/islampersp/www/rpi/application/libraries/Omeka/Application.php(73): Zend_Application->run()
#24 /websites/islampersp/www/rpi/index.php(23): Omeka_Application->run()
#25 {main}