It appears that flies are causing the game to crash according to the crash report below:

crash-2020-12-13_21.43.33-server.txt

specifically the lines:

if (!(creatureIn.getNavigator() instanceof GroundPathNavigator) && !(creatureIn.getNavigator() instanceof FlyingPathNavigator)) {
throw new IllegalArgumentException("Unsupported mob type for TemptGoal");
}

removing the mod stops the crashing.

This occurs with Pam's Harvestcraft too. I've reported it and they just blame this mod. Unfortunately, I've had to remove this mod as HC is more important to my pack.

This isn't caused by our mod.
The error is stemming from "enemeez.simplefarming.entities.ai.MoreTemptation.". Please report this issue to the mod with modid "simplefarming". They should not assume that every animal has one of 2 vanilla pathfinding systems.