[@robin-w Moderator 12 years ago]

just tested worked fine on my twentyten test site

suggest it could be a theme or plugin issue

Plugins

Deactivate all but bbpress and see if this fixes. if it does, re-enable one at a time to see which is causing the error.

Themes

If plugins don’t pinpoint the problem, as a test switch to a default theme such as twentyten to prove your code works.