Invalid argument error, using latest version

Hi, I just purchased and installed this component. All looks good, except I see the following error message on poll pages:

Warning: Invalid argument supplied for foreach() in /home/hellonan/public_html/components/com_communitypolls/helpers/pollsuggestions.php on line 9

Link: http://hellonanjing.net/polls/viewpoll/ ... e-you-from