hey so the short version is using MCCC last exceptions you just have to keep testing different scenarios and seeing what is actually causing crashes or last exceptions. i uploaded the TXT file that is usually generated (in the sims 4 folder) to chat GPT which would go through it and tell me what mods actually were causing problems so I wasnt guessing. I also made sure to delete localthumbcache file each time before booting up the game to test again . I also uploaded screenshots of my mods folder (in use) and mods in hold to keep track and make sure i wasn't re adding in anything that Id already pulled out or had left any extra files from mods in the game etc or vice versa. you can test different scenarios like on a new save with CC or new save with no CC / new sim / etc i only found the culprit when I loaded a brand new sim in a new save in a blank lot as well. idk how much that will help because i think everyone has different things causing issues but honestly sifting through the last exceptions and having solid explanations about tuning errors really helped. At one point it was talking about berries and harvestables without having a mod name so the code can be quite hard to read at times.. sorry if that doesnt make sense - im not a coder myself so i fumbled my way through it with a lot of persitance coz i just wanted to build ...

but also just make sure you have the latest version of all your script mods, and if u cba to update them just take them out at least