BuddyPress.org

Hi, something strange happened.

Today a person wrote me, that he couldn’t register on my site http://gamezgeneration.de/registrieren

He typed in his desired username and his email, clicked “Register” and the site just reloads.
I tried it for myself, but it doesn’t work. Some of my stuff members told me, that they got messaged by users as well in the past days.

We’re using latest WordPress 3.5.1 and BuddyPress 1.7.2 and never had this problem before. I neither have installed new plugins nor have I installed a new theme.

I really don’t know how to fix this. Tonight I’m going to enable maintenance mode and disable all plugins (and maybe activate the standard BuddyPress theme).