Reply To: Price error in form

One problem is that you havn’t uploaded all files. At least some images are missing.
The other is a URL problem: Once you have set http://quintadamestra.ed-design.pt as url and other setting must be http://quintadamestra.com. Therefor AJAX doesn’t allow requests.

But that didn’t happened at your first edit. The submit problem was really strange and I think your theme does some strange wrapping of the content that struggles the form.