[@dss Member 17 years, 9 months ago]

Have you got any plugins running?

I had this error, and removed all my plugins. Error gone.

I began adding them back one by one until I found a few which were causing problems.

Sadly, the wordpress integration plugs were what was giving me this specific error, but admin can post anything, and a couple others were causing problems, so they’re gone now and my forum works fine.

Just a thought.