Joomla Email Validation Error - repost

One person was not able to fix it, so you need to be an expert. Joomla Site with a template and RS!Events Pro install. When I attempt to register for an event, I receive a "Please enter a valid email!" error. I have narrowed the error to the template that I am using. I would like to fix this. Should be simple for an experience Joomla developer. go to the site to reproduce the error. here is the link: [login to view URL] I need an experience person. I will be review all your credentials. This is turn into much more work for you in the future.