GTranslate Contact Form 7 error

Hi, i am working in a webpage that has a contact form, in the original language (english) works fine, but when enter in a translated page, (spanish, french, italian) the form doesn´t work

http://www.madefromstone.com/contact (works fine)
http://www.madefromstone.com/es/contact (doesn´t work)

¿What is the problem?

The page I need help with: [log in to see the link]