I've got this quite lengthy error from this mod.
Looks like it's trying to create a stacked item for something that's been deleted. Likely a conflict with another mod, can you provide a mod list (or if it's lengthy, easier would be a save game which I can sync mods to). Thanks!
A savefile wouldn't have worked since a lot of other mods had nil errors that i fixed locally to get the game to start but your latest update fixed it for me.