Application Error

exception 'Exception' with message 'Host parameter is empty' in /var/www/garagegames.com/library/Apache/Solr/Service.php:339 Stack trace: #0 /var/www/garagegames.com/library/Apache/Solr/Service.php(202): Apache_Solr_Service->setHost(NULL) #1 /var/www/garagegames.com/application/default/controllers/SearchController.php(13): Apache_Solr_Service->__construct(NULL, NULL, NULL) #2 /var/www/garagegames.com/application/default/controllers/SearchController.php(238): SearchController->_processSearch(Object(GG_Form), 0, 20) #3 /var/www/garagegames.com/html/Zend/Controller/Action.php(513): SearchController->advancedAction() #4 /var/www/garagegames.com/html/Zend/Controller/Dispatcher/Standard.php(289): Zend_Controller_Action->dispatch('advancedAction') #5 /var/www/garagegames.com/html/Zend/Controller/Front.php(946): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #6 /var/www/garagegames.com/html/index.php(192): Zend_Controller_Front->dispatch() #7 {main}