If you have an angel ring in the curios slot, and you grab a different ring and try to replace the ring currently in the angel ring slot with another one, it will cause a crash.

Here is the crash log: https://pastebin.com/68qyYtsU
Latest.log: https://pastebin.com/52ZrMbdz

Angel ring 2.0.1
Curios 5.0.7.1
Forge 40.1.36 for 1.18.2

Thank you for the report. Just tested with the same versions of all the mods in the crash report. Seems nothing happened when I tried to switch the rings as many ways I tried, but when I started aggressively try to switch them, they hang up and I reproduced the crash. Fix shouldn't be a problem I believe.