hello, I just updated my server (including Oxide, last update 7 days ago) I changed the map twice now but when I try to kill a scientist or heavy scientist
I take damage myself and killing myself instead. I get the following error spammed in my console:

"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
"SetDestination" can only be called on an active agent that has been placed on a NavMesh.
"SetDestination" can only be called on an active agent that has been placed on a NavMesh.

It only seems to be spamming when I shoot a scientist I removed ZombieHorde and BotSpawn plugin and restarted the server and tried again but it still happens does anyone know how to fix this problem ? Like I mentioned earlier I changed the map twice in the mean time because I thought I was a map problem I found a post about the large oil rig but can't find a scientist that has spawned wrong also unable to kill them. I hope anyone knows how to fix this.

EDIT: It seems that it still spams the console even when not shooting an NPC

What plugins do you have? Type plugins in console to get the list. Often times, a good method to find the culprit is to:

• Make a backup!
• o.unload *   to unload all mods.
• Since you just made the backup, you can delete the mods from the /plugins folder now.
• Load 5 or so mods at a time (I drag and drop into the FTP client) then kill a bot and see. 
• Repeat until you narrow it down.

Someone could also come by in like, 5 seconds, and say it's ZoneManager or something. I've heard things about oil rig scientists making console spams. With all mods unloaded, you can still god mode and spawn a weapon in to kill stuff to test.

I added this line into my start.bat  +server.pve true  to make the server PVE but I removed that line and I can kill npcs again. But the question is how do I make my server PVE if that doesn't work ?

EDIT: As soon as I use server.pve true  in the console it gives me the issue again killing an NPC >> kills myself

dont use server.pve true use the plugin called TruePVE