Rapid weaver contact form stopped working

I’ve been using a contact form on my Rapidweaver website for several years, but recently it stopped working. It doesn’t send the form to my email and it doesn’t show the confirmation page saying the information was sent. I re-uploaded the page but still have the same problem. Here is the form http://www.restoringhopeint.org/rhv/volunteer/contact-form-2/page20.php

Any help would be greatly appreciated,