I get this error on the console every time I start or restart the server. I get no errors when I'm in the game and am with villagers.

Minecraft version: 1.16.5
Minecraft launcher: Normal Minecraft Forge
Mod version: 7.0.5 (mc ver: 1.16.5)
Forge version: Forge 1.16.5-36.2.20

I am new to server hosting, so I have only this mod on the server :)