Cannot submit a form

Cannot submit a form

Hello Zoho
2 questions on forms:
we are working on this form
ECOSISTEMA DEL LAVORO (zoho.eu)

1) the submit button at the end of the form does not produce any result.. it seems it's not working. I checked the help center but no help.. sorry
2) I cannot find a way to create a filter when sending out the form to customers. I would like to have and give out a password and not an www open url. 
thanksss

PS pretty urgent! again, thankss