Semi newbie to sims 2

I wonder what happened in your game that made this happen like what you were doing and or what you had done before this happened. I think a lot of corruption in TS2 is caused by an innocent player not understanding consequences of some of the things they do. But there was a bug in Pets that caused graves to go missing and couldn't get them back. A work around was to make the Sim take the headstone to the actual graveyard or wherever and place it instead of 'sending' it to the lot or spot. I know I was really upset by that bug before they fixed it. Another corruption that can cause things to go missing is using a Uni house in the mainhood, the house is corrupted if you take one of the houses in the University hoods into a main hood to rent/own. It is cheaper but still has corruption. Sorry, for going off topic on this thread but the corrupted hood is an interesting one, and I can't remember if this was a known bug that happened for some odd reason when AL was released and or if it was caused by something a player did.

One thing I do remember is never convert a community lot (even if you have a buyable mailbox) into an apartment base and or move to another hood, or use the cheat to edit an apartment lot while Sims are living there, that all goes badly.

Here is a link (sorry OP but the lot hood corruption should be addressed in case anyone else does it) to show players what they do in the game is the reason for their corruptions. This what Not to do and how to possibly fix hood corruption.

I hope you too will read it, OP.
http://simswiki.info/wiki.php?title=Game_Help:Avoiding_Hood_Corruption