UBB.threads PHP Forum Software Community Forums UBB.classic UBB.classic 6 Support In one of our forums, all messages are showing up with errors

In one of our forums, all messages are showing up with the following error:

An error has occurred:

(RequireVars) NonCGIPath/Forum1/forum_thread_data_0042.cgi: Unmatched right curly bracket at NonCGIPath/Forum1/forum_thread_data_0042.cgi line 1108, at end of line
syntax error at NonCGIPath/Forum1/forum_thread_data_0042.cgi line 1108, near "}"

***

We have done no site maintenance. Any thoughts?

1. Delete the offending file
2. Rebuild Forum Stat files for the offending forum
3. Upgrade to latest version to prevent future occurances.

How do I know what the offending file is? All messages in that forum that I have tried are serving up the error.

FTP to your server and delete NonCGIPath/Forum1/forum_thread_data_0042.cgi

Then Rebuild Forum Stat Files on Forum 1