Where to post error messages?

Just received this error and can't find where to place it to be fixed, any help please.Tried to open zero-sized topic 010821 in forum 1. at CGIPath/ubb_lib_files.cgi line 777.

The Calcutta thread seems to work fine ... that's the thread it's referring to.

I assume just some sort of a hiccup

Any messages you get, feel free to pass them along via email and I'll see if there is a deeper problem

Will do, thanks