What happened?

Encounter a naturally occurring cockatrice.
crash.
Follow-up tests are the same.

doubt: I just joined them and met crash.
Greek Fantasy
RPG Gods

Minecraft Version

1.16(CRASHES ONLY)

Ice and Fire version

iceandfire-2.1.12-1.16.5-patch-1

Citadel version

citadel-1.8.1-1.16.5

Relevant log output

https://mclo.gs/6Qsqhxb

Other Information

• I am using other mods besides Ice and Fire
• I have attached a log file from the session that I have experienced this issue