Hi - I recently had EXACTLY this problem. Be sure to download the latest CEP and reinstall. It should then work fine. - well it did for me. I didnt realise that my CEP was out of date.
(sometimes, even if it isnt, it still works when you reinstall it)
On a side note: My pnormal game was working absolutely fine. It was the new neighbourhood I started on a different profile that didnt. I dont know why this is, but installing the CEP again totally fixed the problem