Hi - Using a 1.16.4 server with Forge 35.0.14 this mod of version ceramicbucket-2.3.1-1.16.2+.jar crashes server.

It happens immediately upon right clicking any entity.

https://pastebin.com/Ra7aF8Rj

Thanks for your report! I will look at this.

Thanks for your report! Fixed in 2.3.2

Thanks!