I downloaded some mods for the first time - almost all of them from this site. When I went to play the game, everything went perfectly...Until I tried to make a Sim interact with another. They'll interact on their own, I think, but when I click on another Sim it says "You cannot interact with this Sim." Or whatever.

So, I figured I accidentally deleted something I shouldn't have. I uninstalled it, deleted all the mods off of my computer, and reinstalled the game. This time, I only installed a couple of mods (Some clothes and a few hair styles and that's it.) and it still didn't work.
I'd like to know if there's a way I can just fix it before I go and delete my characters (I take forever to make them, because every little bit HAS to be right.)

Thank you to anyone who can help.

EDIT: Well, it seems like the adults and teens can't interact. Toddlers interact entirely, but kids can only do "mean" things. Teens and Adults can't talk to each other at all.

Have you tested with clean user files? You don't have to uninstall a game to try this.
Even though you are not having a crash, please follow this tutorial and let us know how you get on.
http://modthesims.info/wiki.php?tit...Loading_Crashes