BuddyPress.org

Hi,
I have this probem:
When i try to do this json request http://koora.altervista.org/members/?json=get_page/COOCKIE-OF-THE-USER
The response of my web-site is: {"status":"ok","page":{"id":25,"type":"page","slug":"members","url":"http:\/\/koora.altervista.org\/members\/","status":"publish","title":"Members","title_plain":"Members","content":"","excerpt":"","date":"2014-02-17 18:11:44","modified":"2014-02-17 18:11:44","categories":[],"tags":[],"author":{"id":1,"slug":"koora","name":"koora","first_name":"","last_name":"","nickname":"koora","url":"","description":""},"comments":[],"attachments":[],"comment_count":0,"comment_status":"closed","custom_fields":{}}}
I don’t understand why it don’t display me the list of all users registered.
Any idea??