Client crashes when placing a crude burner in the world.
https://pastebin.com/GVWkv1VQ

Mod version: 20210515b
Forge version: 36.1.0
Create version: 3.1c

I have not been able to reproduce this crash, what other mods are you running?

Same crash here, it works fine in single player, but CTD when placing the Crude Burner down on a server.
The server continues to work, but you can't re-join it anymore because of the Crude Burner keeps crashing the client.

Versions
Forge 36.1.17

Client & Server Mods

create-mc1.16.5_v0.3.1c.jar
createaddition-1.16.5-20210515c.jar
jei-1.16.5-7.7.0.93.jar

Fixed in 20210517a