Sims 3, The - Late Night Discussion
There will be an option in Avast to add an "exception" or entry to a "whitelist" (a list of trusted programs that the AV will allow), without you having to disable your real-time protection altogether.
See the second post here: Link
As for the savegame issues, I would always advise people to disable all trainer options before saving or loading a game (that advice applies to any game). If one of the options appears to be causing big problems, just don't use that particular one.
Which does it appear to be, the needs or the lifetime points code? I'll look into it
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem