Fatal Error_ Cant find details in any other threads

Hi, i've looked through quite a few threads for this arcade and cant see this error message asked about. It happens as soon as the arcade button on the navbar is clicked.

Fatal error: Call to a member function on a non-object in /home/forums/public_html/arcade.php on line 167

Any ideas on how to fix this?

[MrZeropage]

no idea, please provide FTP+AdminCP-access via Pm so I can check this out

[wrestlepower]

sorry, i forgot to come back and post again. I re-installed and the error is now gone. However, none of the games are showing. I've posted another thread about that (spot the noob, lol)