I just upgraded to the latest version of CommunitySurveys and tried to take a survey I'd published in the last version (1.7.2). I get the following two errors:

Warning: Invalid argument supplied for foreach() in /hsphere/local/home/c168529/careerep.net/components/com_communitysurveys/controllers/response.php on line 265

Then a blank space where the survey should display (but doesn't). Then another error:

Warning: Invalid argument supplied for foreach() in /hsphere/local/home/c168529/careerep.net/components/com_communitysurveys/views/response/tmpl/default_form.php on line 52


Please advise on possible reasons for this error and solutions. Thank you!