Hello! After some back and forth with EMI, and getting an update pushed that would log the error that I was having, it seems that your mod is having a compatibility error with EMI. This causes EMI to occasionally crash. I do not understand much about this, but some of my players really like this mod.

Game Log: latest.log

Hi! Nature's Aura for 1.20.1 isn't supported anymore, except for fatal gamebreaking issues. Can you try to reproduce this on the most recent version of the mod? It looks like it may be a duplicate of #363.

Nature's Aura also isn't officially compatible with EMI, just JEI. So if this issue doesn't occur with JEI, it likely won't be fixed. Sorry!