CONFIRMATION BUTTON ON FORM DOESNT WORKING AFTER UPGRADE TO VERSIONE 2?

hi, i have just updated on version 2 your appointments plugin...
and after this, on schedule page, after i select service, and date, and i insert final data to create appointment, the CONFIRMATION BUTTON does,'t work anymore...

why?

nothing happens if i click......

http://www.costantinomoto.it/travelwork/prenota-la-tua-auto/