Sims 3 keep crashing either because of snow or i don't know?

QuasarMay​  Please update your graphics driver (again).  A couple of recent Nvidia drivers had some stability issues, and that can't be eliminated as a source of error.  The current driver is fine as far as I can tell.  And make sure your framerate limit is still in place after updating (check in-game).  It should be, but occasionally a setting gets lost in an update.