You've corrupted both Pleasantview and Desiderata Valley.
The Brokes start off in Pleasantview.
You can not move Sims between neighborhoods in Sims 2 without corruption happening. I do not know enough about SimPE or what causes corruption to spread to even begin to fix it.
The only way to fix it is to reset both Pleasantview and Desiderata Valley. Which would undo all progress made in both neighborhoods
Do you have the Ultimate Collection or do you own the disc version?
Edit to add: You can still continue to play both neighborhoods, but at some point you will be unable to play in that neighborhood or even load it. And SimPE won't even recognize it. This could take 2 weeks. It could take 20 years. You'll know when it's starting to get bad.
