Name Tag not working

I have followed the wiki add bone named "tag_nametag" and edit mythimobs' config but nothing changed. I search the whole channel about customizing name tag noting really helps...

'0080':
  Type: ZOMBIE
  Display: "&7[ &aLv.5 &7] &fGoblin &7- &7<caster.hp> &c<&heart>"
  Health: 40
  Damage: 15
  Modules:
    ThreatTable: true
  Faction: GOBLIN
  Drops:
  - note{min=20;max=40} 1 1
  Options:
    AlwaysShowName: true
    Silent: true
    FollowRange: 16
    MovementSpeed: 0.5
    PreventItemPickup: true
    PreventOtherDrops: true
    PreventMobKillDrops: true
    PreventSunburn: true
  Skills:
  - skill{s=UPDATENAME} ~onDamaged
  - setvariable{var=Lootsplosion;scope=target;value=1} @self ~onSpawn

  - sound{s=entity.witch.throw} @self ~onAttack
  - model{mid=goblin;n=nametag} @self ~onSpawn