BuddyPress.org

No way to fix it! I tried to do that replacing my activity/index.php, activity-loop.php and entry.php, all files involved into the site activity page.
Same thing done with ajax.php.
The strange thing is that if I go to mysite/activity logged out, I can’t see the content but the page is ok. If I try logged with a subscriber account, the system can’t load the activity and doesn’t come back to activity/index.php to call sidebar and footer.
Any idea? http://www.findmytalent.it
Thanks for your help!