You're going to have to provide more information before someone can help you. What is the context surrounding the error? Is your game crashing when it occurs? Does the error seem to affect your gameplay? Does it cause your sims to reset? Does it happen on one lot only or multiple or every lot? Does it happen when you load a save or when you save your progress? Etc. These are just a few questions I could ask to get an idea of what you have going on. Please lay out what is going on in the game at the time occurs and try to give as full of an account of what you have going on.
Hope this helps.
