Game failed to load, getting Error Code 123:35e4f805:f2e2fcc8

I'm getting an error code related to one specific lot (that I have built on) in my game. I built on the Kiyomatsu Point lot in Mt. Komorebi (from Snowy Escape) and now I'm constantly getting this error code 123:35e4f805:f2e2fcc8 when I try to visit it with a sim. I took out my CC and started a completely new save but still have the same issue with the lot. It's fine when I just go and build on it, but when I visit with my sim, most of the time I get the error code while loading into the lot (a few times I've managed to load in without the error code).

The problem started when the lot was a small business lot (from Businesses & Hobbies) and I changed it to a spa lot to see if it changes anything. I managed to load in to the spa lot once but all the other times I got the error code again. After getting the error code on the spa and being back on the map, for some reason the spa lot on the map suddenly also said that the lot was "incomplete" (as in not fulfilling all the spa requirements). Took the sim home and went to the spa lot in build mode to see if it was incomplete. It was not (and it was not saying it anymore). I have no idea what's going on. I took a long time to build on that lot and now when I would actually want to play in it, it won't let me..