Client says there is an error in last page of survey

"I just went in to register a few times and the last confirmation page is erroring out on me.  I will try again in a few hours to see if it will go through then." -- Client

The website where he is registering is www.kinsethhospitalitytradeshow.com using a survey with images.

"Register Now" link.

THe form is http://form.jotform.us/form/31576130560145

I just went in and registered without errors... Please help!!!