Add a plugin that causes logout problem then switch theme to BP-default. If problem goes away then frisco theme is causing error. It seems weird because logout is a WP function. BuddyPress doesn’t create it’s own logout.
@modemlooper
Lol…..before I read your post I just did what you said. Not working, BP-default is giving the same problem. I even did a WP uninstall/re-install…..no luck.
I don’t understand, it’s a totally new installation and I havn’t even add a post/page, just finished with the setup only and I’m face with this problem.
Has this anything to do with my host? It’s a shared hosting with Bluehost.
did you use the one click WordPress installer? If so, delete it all a install WordPress manually
Yes I did. OK I’ll try your suggestion.
Thanks 
I deleted wp, did a manual install, install BuddyPress, set it up and activate. Chose BP-default theme and install the plugin ‘BP Adminbar For Admins Only’……try logout……the same blank page with http://mydomain.com/wp-login.php?action=logout&_wpnonce=9ae5d4dc54
HELP!!!!
I updated this plugin so make sure you have the latest version. I have used it without any issues on several live sites. Let me know if your still having issues.
I’m having v1.2, is that the latest? Unless you just release a newer-than 1.2 version
@shawn38
I really don’t know what’s going on with the plugin. There’s no special setting to do, just install and activate, as simple as that. But each time I activate the plugin, the same logout error occur. I’m on WP 3.4.2, BP 1.61 and Frisco 1.5.04 (I’ve also tried BP-default)
I’ve no problem with the other BP plugins now (just tested them) after I did the manual WP install as suggested by @modemlooper. I’ve re-installed your plugin thru’ WP dashboard and manually via FTP, the problem persisted. I’ll comeback to it later after I’ve build up my site. You might want to look into this and hopefully more people can help pin down this issue.
OK, I’ll try to look out for the white space and try again.
Thanks for the heads up 
Indeed it was the white space. Issue solved
@shawn38
I did not use any editor for that matter. I edited the php file directly in Plugin/Editor of WP.
The white space is after the closing tag “?>” , I just did a backspace to eliminate it. That’s all I did.
The white space could have appeared in the Plugin/Editor after installation…..I’m not sure of that.
@shawn38
Ok I just downloaded the plugin from WP, unzip it and open the php file with Notepad (the default one with Windows), the white space is there right after ?>.
I again opened it with Notepad++, the white space is also there. Wonder why your Notepad is not showing.
@yangman it may be because I am using the same notepad++ from like 3 years ago and I have failed to update the software.
