Error Community Surveys

Updated to the latest version of CS

Created a survey which seem to work fine then changed a setting and on completing the survey gives. Cant remember what the setting was , possibly to show in full page

Fatal error: Call to a member function getCfg() on a non-object in /home/ratings/public_html/components/com_communitysurveys/controllers/response.php on line 304

Survey at http://www.ratings.com.au/index.php/home/community-surveys