NEW BIG WORLD! Pottersville The Sims 3 World Overview 

I use lazydutchess lot population mod, the light one. It makes such a difference. The full version I find there's far too many sims and its annoying.

I'm not really sure to be honest this world has over 100 sims living here, but you could still run into a issue of not seeing that many sims.

@@ElvisLivesUpstairsHI! Sorry, I am seeing this only today. Thanks for the tip, I'm gonna intall and check how this goes in game. Thanks!

@@CjplaysYT I will try with and without Lazydutchess mod and we'll see. But I def gonna try this worls. This gives me such a "real city" vibes...

Thank you for telling me!! I fixed it!!

This happens to me a lot especially in bigger worlds, so to try and help my save I do Save As instead of normal saving. I also try to save every 10-15 minutes or so. I also turn my lot details down to try and reduce lag. But Error Code 12 is just a part of Sims 3 there’s no one way to fully prevent it.

@@CjplaysYT Thanks for reply.Pottersville is the only world it has happened to me with. Any other large worlds haven't been any problem. I have Late Night,Generations,World Adventures,Seasons and Ambitions.and Pets EP's but not Showtime or Island Paradise.Only 2 buildings are blacked out because Showtime or Island Paradise isn't there but i delete them into empty Lots and put my own there to replace tried with and without doing that. I have a decent enough PC which confuses me more- GPU-ZOTAC GTX 1080 CPU RYZEN 5 1600 RAM 12GB. Would not having showtime and or island paradise cause any bugs @ all?

@@HeatherHenry-k9d You're welcome!! And that could lead to some issues seeing as how the world uses them, but it could also just be a world issue since it's so big. I'm not really sure.

Hey. There's a video by Not Malcom Landgraab i which he tells what what he did to fix error 12 in his game. Maybe it's worth taking a look

The world was updated Feb 2024, so redownload it and it should work again.