Okay, so I made a backup of my sims files and then deleted all the current ones. I made a new game and tested travelling and moving, it was fine. Then I added my mods in groups of 20-30. It turned out to be a few buggy mods that I had issues with before and thought I had solved and a corrupt save file (RIP the Shaprio family, it took me a few weeks to get to where they were before the corruption 😢). My game works okay now, I still get a similar message when I have one of my played houses attempt to travel to another one of my played houses, but it only happens when I'm travelling in world edit so I just don't do it that way anymore. Thank you for the help! 🙂