What is error code 111:41812468:a9f97ad8?

I recently got a new computer and moved all my stuff onto there. I transferred my old save files. For some of the files, I get an error message when trying to load the lot (see attached). Sometimes it just crashes when loading into households. I've tried on multiple saves. I don't have any mods/cc installed. I've tried repairing. I've tried uninstalling and reinstalling the game. I've tried removing the saves and repairing. I don't know what I'm doing wrong. At this point, Sims 4 is unplayable.