Usvisaappt France doesn't work? J1 visa

I have been unable to create an account in usvisaappt to schedule an appointment for my J1 visa. I tried with different emails and in different days but I NEVER got the confirmation email for the account creation, so my accounts are INACTIVE. There is no way I can login. Embassy cannot help, and there is a sort of contact center but they were not helpful either.

Is anyone having the same issue? Did you manage to solve it? It is urgent that I schedule an appointment ASAP.