INVALID FORMAT HeadHunter RPG System

[Sauliuxx]

https://www.spigotmc.org/resources/headhunter-rpg-system.32459/

Can someone update this to a version for 1.12.2?

also maybe someone had an issue when even if you set so previous level heads wouldn't give you XP, it still gives?

 

[Gertjan200]

Or the latest version