problem with link 'Edit profile'

Hi,

wpmspp is a multisite.
My problem is on one multisite : clubm.marseille.fr

I defined a membership zone, all is OK.
But on public site, after connection, i go to my profile page.

http://clubm.marseille.fr/espace-ambassadeur/profil-ambassadeur/

But if i click on edit button, the page reload but nothing. The fields are not editable !
http://clubm.marseille.fr/espace-ambassadeur/profil-ambassadeur/?action=edit_profile

The action parameter is in the url.

I don't have any errors in Javascript or PHP.

What is the problem please ?

Thanks for your help,

Julien