Third Last Exception

I am getting so many of these last exceptions that I lost track. They are all from either when my Sim has an apartment in San Myshuno or when she went to Brightchester for college.

Collectively, I'd say I am getting at least one or two each time I play my game.

And again, I don't use mods and I make sure I delete my cache files after every game play. And now I have an uninvited townie stuck in my San Myshuno apartment that I cannot delete, get rid of with cheats, etc. I just posted a report for that one as this is royally screwing up my game.