Unable to save forms after editing

Hi,

I have a website with 2 languages and I need to manage the contact forms in Italian and English. If I create a new module or modify an existing one, if I click on “save form” it does not save the changes! For English I managed to insert the default module but I cannot change the recipient of the email (set by default to the email admin). The site is translated with WPML, could there be a known conflict?

thanx

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