Autorank mob kill requirement error?

Hello guys, i have a problem with the mob killer requeriment, lets see if you can help me.

http://es.tinypic.com/r/2mhbnzn/9

When i dont have the Statz plugin working, i can see properly the 2 requeriments with /ar check, but obviusly the requeriment mob kill is not working.

Then i put the statz mod and then its show that problem, and is not working. Any help please? ( i used last version of Statz v1.5.1 Apr 28, 2018)




Autorank Advanced config:

ranks:
forasteros:
requirements:
time:
value: 2m
results:
rank change: forasteros;habitantes
command: 'say &p just got a promotion; broadcast &p has just been promoted to habitantes!'
message: 'Congratulations, you are now a habitante.'
habitantes:
requirements:
time:
value: 3m
mobs killed:
value: 1;pig
results:
rank change: habitantes;veteranos
command: 'say &p has just been promoted to veteranos!; give &p 6 2; tell &p You have just earned 100 stone!'
message: 'Congratulations, you are now a veterano.'


Console log:
https://pastebin.com/Xsr61RXB


Statz Config:
track stats: true
show database save message: false
mysql:
enabled: false
hostname: localhost:3306
username: root
password: ''
database: Statz
periodic save time: 10
refresh player cache time: 60
disabled statistics:
- DISABLED_STAT_NAME_HERE
- OTHER_DISABLED_STAT_NAME
ignore creative: false
enable debug output: true
latest patch mysql version: 0
latest patch sqlite version: 3
use custom statz list: false
custom statz list:
- JOINS
- FOOD_EATEN
- KILLS_PLAYERS
use statz gui: false


Please some guidee, i could not find a solution searching in internet >.<

 

Thank you for answer.
Yes mate, this is what i had "PluginLibrary-1.2.jar"

Anyway you can see it when you do /plugins , it appears, so must be another problem, i dont know what.
Any other suggestion?

 

up
No one knows something quite simple like that? stuck there