I have several users on the same blog all using wordbooker to post to fanpages that were all created using one facebook profile. One of the users gets an error that says "unknown error" in the error logs when updating a particular post. The facebook post then gets posted to the wall of the profile that created the fanpages.
I've searched wordpress.org and google but can't find an answer as to why this is happening. I've tried turning on advanced post diagnostics but I'm not able to find anything but "unknown error".