i put Human NPC on fresh server and spawm me in 12Hour 50-60MB logs with only one error.
unload the plugin stop the spam in rust log if i load back ist start again.

Error:

Failed to create agent because it is not close enough to the NavMesh 
(Filename:  Line: 648)​

Server Info:

OS: Linux 5.4 Ubuntu 20.04 64bit

CPU
Model: AMD EPYC 7282 16-Core Processor
Cores: 6
Memory: 16013 MB

GPU
Model: Null Device
API: NULL 1.0 [1.0]
Memory: 128 MB
SM: 50

Process
Memory: 0 MB

Mono
Collects: 48
Memory: 6 MB

LOG:
rustserver-game-2021-09-08-10:13:45.log