Form not sent

Hi,

I’ using contact-form-7 on one of my site and everything works just fine.

I tried installing it to another blog and the form won’t validate (ajax?).

Here’s the link to the form.
http://www.autoactualites.com/nous-contacter/

I tried with and without captcha. I uninstalled reinstalled and then recreate the page. I even created a new form… etc.

Thanks for your help.