Um-- shot in the dark here but-- is the Atomic phone one that came with Freetime? Because you might have an outdated CEP if that is the case.
I will refrain from mocking the noobs as I could be wrong about this because I never use phones in my hoods.
If not, search your downloads for anything with 'phone' in the name and yank them all.
Also, please edit your post to attach the error file to the post and give us a few words of content. If you don't, I will be forced to take the extreme measure of chastising you with my mad language skillz.
Hellyes, I find it hard to believe that after this game has been out so many years, someone can still be so ignorant. Because, you know, it's so much better to watch your Sims reset randomly than to know the cause so that you can fix it.