BuddyPress.org

hi.
i am using SocialChef Theme.
i checked signup page, befor the last update of buddypress, and it was working fine.
i haven’t checked it since then, until now.
it’s not working anymore. (show me a blank page)
the theme author is saying:
——-
“Hi,
If you are using WordPress only, then the Register page template is “Custom Signup Page”.
If you use WordPress and BuddyPress then you create a Register page using the Default page template and then you link to this page from the BuddyPress configuration screen /wp-admin/admin.php?page=bp-page-settings

Btw, the Login screen (or Register for that matter) will not appear if you are logged in. You have to log out to see them.”
——–
i do have a buddypress folder in my theme, to override some pages.
and in there i do have register page.
but it’s not working.
——–
FYI, i disabled all the plugins, deleted all the extra functions i’ve putted in theme functions and bp-custom,
and reset everything to it’s default.
but not working.
what should i do now?