Having trouble posting

[Talitha]

I get this error when I try and post in my newbie game:

Fatal error: Call to a member function on a non-object in /home/mith/public_html/forum/includes/functions_post.php on line 366

The post goes through, but it doesn't show up on the index page that I am the last poster in that forum.

I'm going to try and post in a different forum and see if I have the same problem.