invision

Hi everyone, i do hope that htis is the right section, I'm new to website coding, especially with perl scripts, I have modified a website which i bought a couple of years ago, and everything was fine until i edited the categories, could someone who is more familiar with perl please look at my file and see if they can detect where the problem is??
I would really appreciate your assistance if I can get it.
If your able to help please send me a message & I'll forward the file onto you, as it's too big for attachment to this post!
Thanks