Omeka napotkał błąd

Exception

String could not be parsed as XML

exception 'Exception' with message 'String could not be parsed as XML' in /home/wwwkultura-atrakcji/www/plugins/SocialBookmarking/helpers/SocialBookmarkingFunctions.php:45
Stack trace:
#0 /home/wwwkultura-atrakcji/www/plugins/SocialBookmarking/helpers/SocialBookmarkingFunctions.php(45): SimpleXMLElement->__construct('<html>\r\n<head>>><.')
#1 /home/wwwkultura-atrakcji/www/plugins/SocialBookmarking/helpers/SocialBookmarkingFunctions.php(55): social_bookmarking_get_services_xml()
#2 /home/wwwkultura-atrakcji/www/plugins/SocialBookmarking/helpers/SocialBookmarkingFunctions.php(85): social_bookmarking_get_services()
#3 /home/wwwkultura-atrakcji/www/plugins/SocialBookmarking/SocialBookmarkingPlugin.php(148): social_bookmarking_toolbar('http://www.kult...', 'Ikonografia', '\xC5\xB9r\xC3\xB3d\xC3\xB3d\xC3\xB3d\xC3\xB3d\xC3\xB3d\xC3\xB)
#4 [internal function]: SocialBookmarkingPlugin->hookPublicCollectionsShow(Array)
#5 /home/wwwkultura-atrakcji/www/application/libraries/Omeka/Plugin/Broker.php(157): call_user_func(Array, Array)
#6 /home/wwwkultura-atrakcji/www/application/libraries/globals.php(188): Omeka_Plugin_Broker->callHook('public_collecti...', Array)
#7 /home/wwwkultura-atrakcji/www/themes/kultura_atrakcji/collections/show.php(55): fire_plugin_hook('public_collecti...', Array)
#8 /home/wwwkultura-atrakcji/www/application/libraries/Omeka/View.php(117): include('/home/wwwkultur...')
#9 /home/wwwkultura-atrakcji/www/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('/home/wwwkultur...')
#10 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(905): Zend_View_Abstract->render('collections/sho...')
#11 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(926): Zend_Controller_Action_Helper_ViewRenderer->renderScript('collections/sho...', NULL)
#12 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(965): Zend_Controller_Action_Helper_ViewRenderer->render()
#13 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch()
#14 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch()
#15 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('showAction')
#16 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#17 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#18 /home/wwwkultura-atrakcji/www/application/libraries/Zend/Application.php(382): Zend_Application_Bootstrap_Bootstrap->run()
#19 /home/wwwkultura-atrakcji/www/application/libraries/Omeka/Application.php(79): Zend_Application->run()
#20 /home/wwwkultura-atrakcji/www/index.php(23): Omeka_Application->run()
#21 {main}