Hi,
i tried this config:

"NPC ignores sleepers (Enabling it can cause server lag)": true,​

But NPCs and Animals still meet at sleepers and hit them.
i have installed SpawnNPC and the group sleeperguard.npcignore permission is set for the default group
when i reload the plugin ill get the following spam message -> 
https://imgur.com/a/iWbHr5I

I also use the TruePVE Plugin.

Greetings Marc