I downloaded some community lots, installed them with Sims2 Package Installer, and now they're in my game forever. It crashed when the game was loading the first time, the second time it crashed while a family was loading. I downloaded off of MTS2. Is there a way to take back buildings to make my game work again?

I just had my game on before I installed the lots, so it has to be something about the lots..
edit: It just happened again when another family in another neighborhood was loading. *scream*