Contact Form not working

We're wedding photographers and use the ProPhoto4 theme for our website! In the last couple weeks, our contact form page began not working. When potential clients fill it out, a new screen pops up saying...

Are you sure you want to do this?
Try Again (linked)

When they click the "Try Again" link, it takes them right back to a blank contact form and we never receive their inquiry. PLEASE, PLEASE HELP! We're losing business everyday from this silly issue!

Thanks,
Aaron and Jill
http://www.AaronandJillian.com