Stuck in loading screen trying to load in a lot

Hi! I’ve had this save file for a while now, and I’ve put a lot of time and effort into it, starting completely from scratch. Everything was working fine at first, but for the past few months, I’ve been having issues loading into certain lots. Whenever I try to enter a lot, whether through Build Mode or by traveling, I get stuck on the loading screen. I know it’s not my mods because this only happens with this specific save file. All my other saves load normally. For example, if I try to place a build on an empty lot or replace an existing build with a new one, I get stuck on the loading screen every time. This issue has been going on for a while now, and I really don’t want to lose this save. Can someone please help me figure out what’s wrong? Thank you!!