Minecraft NPC Mod: Why don't my friends see the NPC's?

Ma
- in Mods
2

I made a Minecraft Sever with the NPC mod with a few friends. Here's the problem: My friends don't see the NPCs, but I can see them. Why is that? I would be happy if someone could help me.

Minecraft Version: 1.12.2

Sa

Did your friends install the moon too?

Po

Then they would not be able to enter the server.