Quote Originally Posted by mc12345678 View Post
A couple of things can be done to sleuth this out. One is to install a mod that lat9 put together. I think it is called mydebug backtrace. This error is generated at the categories.php file, but the problem occurred somewhere upstream of it.

The other thing you could do is review your admin activity logs for those dates and identify what was being done around that time frame to support reproducing the error. Then once the above plugin is installed and action taken to reproduce the error, more useful information should be inthe mydebug file to track down what is causing the issue.
Thanks for the advice. I will get lat9's backtrace installed and see if I can ferret out what's going on. Whatever it is, it doesn't happen very often. I just checked the logs again and there weren't any additional errors, since the one on the 10th. :)