I keep getting error messages when I play?

I probably should have mentioned this before but the error message first appeared when I placed down a CC bench I downloaded. It said I bought the bench and took away simoleons for it but nothing appeared, then I got the error message. I completely forgot this even happened so I deleted the bench and then hit play again and I stopped getting errors. I'm pretty sure that must have been what it was, but I don't know why it happened.I've never had issues with the bench before but I don't know if it could have conflicted with something if anything because I hadn't even downloaded any mods/cc since it was last working fine.