Crashing on save

Hey, so Ive been loving this modpack a ton, but unfortunately it seems Im no longer able to play this. Game crashes now every time I try to save. I tried loading older saves, and clearing out extra save files from prior to using Wildlander. I was reading something about needing to find a dead NPC with winter gear, but that seems it would be impossible to do, and Im not sure it would explain older save files crashing. Id appreciate the help

edit: Unhandled native exception occurred at 0x7FF678BA8C07 (SkyrimSE.exe+128C07) on thread 6080!