Armor is not working

Summary

A value eg. "Armor: 5" does not affect the damage taken by the monster.

Steps to reproduce

https://pastebin.com/idHi2CjL

Current behavior

Regardless of whether the armor value is set to "1", "5", "10", the damage the monster taken is the same

Intended correct behavior

The mob should take reduced damage values depending on the armor

Server log file

https://pastebin.com/MEnbTi1L

Proposed fixes

I have no idea, I tried on different versions of MM and MMOLib, I reinstalled the contents of the folders, it also did not help