Hello, I decided to run a Minecraft server on my pc with a new mod to play with my friends.
But the server shows up as "Incompatible Vanilla Server"
and every time a player join and start walking in any direction the player crashes but the server stays on.
The mod works fine in single player.
Forge-1.15.2-31.2.13
If someone joins with no mods downloaded they don't crash but the mods don't work.
I also tried downloading a different version of this mod and set up a 1.7.10 forge server and it works just fine but I would like to play on 1.15.2 instead
Crash report, server folder and "Incompatible Vanilla Server" attached below
crash-2021-03-12_17.53.07-client.txt