I get a lot of error messages when I start my Forge Server. Whether this error message affects the server I do not know. But I wanted to report it anyway, if relevant.
If further information is needed, please answer here. The log file is very long, so I copied the most relevant lines to get the overview.

Steps to Reproduce

I starting my server

Version of Minecraft, version of Animania, Single Player or Server

Linux Server
Minecraft 1.12.2
Forge-1.12.2-14.23.5.2768

Log File: https://pastebin.com/ZnKaXgME

This is intended, those are just warnings