Firstly, sorry if this is the wrong place to post this but if someone could help me that would be really great

I've had ACR for ages but recently it's started to display loads of error messages - every time I load a lot it says something like:
"An error occurred in object "Controller - Casual Romance - Main" #186,
Error: Problem executing script (AttractionScore): Run-time: (none):0: attempt to perform arithmetic on field '?' (a nil value) stack traceback:
(none): in function 'AttractionScore'"
If I click on cancel it just comes back straight away and if I press reset it goes away for a few seconds and then comes back again. If I press delete then I can't use most of the features of ACR on that lot. I've tested my whole Downloads folder with a set of new game files and this problem doesn't happen so maybe there's something wrong with my game files or something? But I also have loads of other hacks which might be contributing to it too but I'm not sure if they would be the cause of the problem because it works fine with the rest of my Downloads folder..
The EPs & SPs I have installed are University, Nighlife, OFB, Pets, Seasons, Apartment Life and Glamour Life.
I'm sorry if there's something really obvious I've missed :S but any advice would help - it's a great hack and I really want to be able to use it again lol