Omeka has encountered an error

Omeka_View_Exception

Invalid record passed while getting record URL.

exception 'Omeka_View_Exception' with message 'Invalid record passed while getting record URL.' in /var/www/clinton_omeka/application/views/helpers/RecordUrl.php:34
Stack trace:
#0 [internal function]: Omeka_View_Helper_RecordUrl->recordUrl(NULL, 'show', false, Array)
#1 /var/www/clinton_omeka/application/libraries/Zend/View/Abstract.php(350): call_user_func_array(Array, Array)
#2 /var/www/clinton_omeka/application/libraries/globals.php(3259): Zend_View_Abstract->__call('recordUrl', Array)
#3 /var/www/clinton_omeka/application/libraries/globals.php(3259): Omeka_View->recordUrl(NULL, 'show', false, Array)
#4 /var/www/clinton_omeka/plugins/SolrSearch/helpers/SolrSearch_Helpers_Index.php(155): record_url(NULL, 'show')
#5 /var/www/clinton_omeka/plugins/SolrSearch/helpers/SolrSearch_Helpers_View.php(93): SolrSearch_Helpers_Index::getUri(NULL)
#6 /var/www/clinton_omeka/plugins/SolrSearch/views/shared/results/index.php(116): SolrSearch_Helpers_View::getDocumentUrl(Object(Apache_Solr_Document))
#7 /var/www/clinton_omeka/application/libraries/Omeka/View.php(117): include('/var/www/clinto...')
#8 /var/www/clinton_omeka/application/libraries/Zend/View/Abstract.php(888): Omeka_View->_run('/var/www/clinto...')
#9 /var/www/clinton_omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(912): Zend_View_Abstract->render('results/index.p...')
#10 /var/www/clinton_omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(933): Zend_Controller_Action_Helper_ViewRenderer->renderScript('results/index.p...', NULL)
#11 /var/www/clinton_omeka/application/libraries/Zend/Controller/Action/Helper/ViewRenderer.php(972): Zend_Controller_Action_Helper_ViewRenderer->render()
#12 /var/www/clinton_omeka/application/libraries/Zend/Controller/Action/HelperBroker.php(277): Zend_Controller_Action_Helper_ViewRenderer->postDispatch()
#13 /var/www/clinton_omeka/application/libraries/Zend/Controller/Action.php(527): Zend_Controller_Action_HelperBroker->notifyPostDispatch()
#14 /var/www/clinton_omeka/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('indexAction')
#15 /var/www/clinton_omeka/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#16 /var/www/clinton_omeka/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#17 /var/www/clinton_omeka/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#18 /var/www/clinton_omeka/application/libraries/Omeka/Application.php(77): Zend_Application->run()
#19 /var/www/clinton_omeka/index.php(23): Omeka_Application->run()
#20 {main}