Đây là lỗi:

[09:09:36] [Server thread/INFO]: [+] Vật phẩm trên mặt đất sẽ bị Xóa trong 60 giây nữa!
[09:09:54] [Server thread/ERROR]: [MythicMobs] Cannot load plugins\MythicMobs\Mobs\King.txt
[09:09:54] [Server thread/WARN]: io.lumine.utils.config.InvalidConfigurationException: Top level is not a Map.
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.config.file.YamlConfiguration.loadFromString(YamlConfiguration.java:56)
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.config.file.FileConfiguration.load(FileConfiguration.java:158)
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.config.file.FileConfiguration.load(FileConfiguration.java:126)
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.config.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:177)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.io.IOLoader.reloadCustomConfig(IOLoader.java:69)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.io.IOLoader.<init>(IOLoader.java:51)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.io.IOHandler.getSaveLoad(IOHandler.java:42)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.mobs.MobManager.loadMobs(MobManager.java:81)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.io.ConfigManager.LoadAll(ConfigManager.java:93)
[09:09:54] [Server thread/WARN]: 	at io.lumine.xikage.mythicmobs.commands.ReloadCommand.onCommand(ReloadCommand.java:27)
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.commands.Command.onCommand(Command.java:69)
[09:09:54] [Server thread/WARN]: 	at io.lumine.utils.commands.Command.onCommand(Command.java:60)
[09:09:54] [Server thread/WARN]: 	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
[09:09:54] [Server thread/WARN]: 	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
[09:09:54] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:648)
[09:09:54] [Server thread/WARN]: 	at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchServerCommand(CraftServer.java:634)
[09:09:54] [Server thread/WARN]: 	at net.minecraft.server.v1_12_R1.DedicatedServer.aP(DedicatedServer.java:444)
[09:09:54] [Server thread/WARN]: 	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:407)
[09:09:54] [Server thread/WARN]: 	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679)
[09:09:54] [Server thread/WARN]: 	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577)
[09:09:54] [Server thread/WARN]: 	at java.lang.Thread.run(Unknown Source)
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 38 mobs.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 3 vanilla mob overrides.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 0 mob stacks.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 50 skills.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 11 random spawns.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 10 mythic items.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 2 drop tables.
[09:09:54] [Server thread/INFO]: [MythicMobs] Loaded 0 mob spawners.
[09:09:54] [Server thread/INFO]: MythicMobs has been reloaded!

Đây là mob:
King
   Type pig_zombie
   Display &f&l[&e&lLegend&f&l] &6&lThe King
   Health 5000
   Damage 30
   Armor 25
   KillMessages
   - '&ftarget.name đã bị &f&l[&e&lLegend&f&l] &6&lThe King &fhành sml! '
   Skills
   - skill{s=SummonLinh2} @self 0.07
   - skill{s=KingPoison} 0.1
   - skill{s=Fireball2} 0.3
   - skill{s=Cuongno} 0.1
   - blockmask{material=BEDROCK;r=1;duration=100} @self ~onTimer20
   - effectparticles{particle=enchanted_hit;amount=10;hS=0.5;vS=0.4;yoffset=0.6;speed=0.0001;d=10} @self ~onTimer10
   Options
     AlwaysShowName true
     Despawn false
     PreventItemPickup true
     MaxCombatDistance 25
     MovementSpeed 0,3
     KnockbackResistance 0,8
     PreventLeashing true
     PreventOtherDrops true
     PreventRandomEquipment true
     PreventRenaming true
     ShowHealth true
     Silent true
   AITargetSelectors 1
   Drops
   - Iron_ingot 48-64 1
   - money 130000 1
   - diamond 48-64 1
   - Gold_ingot 48-64 1
   - exp 15000 1
   Disguise
     Type player
     Skin 'King'
   Equipment
   - GOLDEN_SWORD:5
   - SHIELD:0

Đây là Skill:
SummonLinh2:
  Cooldown: 40
  Skills:
  - message{m="<mob.name><&co> Hãy tấn công, quân lính của ta!"} @PlayersInRadius{r=40}
  - delay 20
  - summon{mob=Linh;amount=3;noise=5} @Self
  - delay 20
  - summon{mob=Linh;amount=3;noise=5} @Self
KingPoison:
  Cooldown: 20
  Skills:
  - potion{type=weaken;lvl=4;duration=200} @PlayersInRadius{r=20}
  - effect:particles{p=crit;amount=1000;hSpread=15;ySpread=1;speed=0;yOFfset=0.5}
    @Self
Fireball2:
  Cooldown: 20
  Skills:
  - shootfireball{y=1;v=4} @target
  - delay 10
  - shootfireball{y=1;v=4} @target
  - delay 10
  - shootfireball{y=1;v=4} @target
  - delay 10
  - shootfireball{y=1;v=4} @target
  - delay 10
  - shootfireball{y=1;v=4} @target
Cuongno:
  Cooldown: 15
  Skills:
  - message{msg="<mob.name>&e chuẩn bị cuồng nộ."} @PIR{r=15}
  - effect:sound{sound=entity.item.break;volume=1;p=1} @self
  - effect:particles{particle=crit;amount=250;vSpread=1;hSpread=1;Speed=0.1;} @self
  - potion{type=SLOW;duration=40;level=7;} @self
  - delay 40
  - effect:sound{sound=entity.item.break;volume=1;p=1} @self
  - effect:particles{particle=crit;amount=250;vSpread=1;hSpread=1;Speed=0.1;} @self
  - potion{type=INCREASE_DAMAGE;duration=160;level=3;} @self
  - potion{type=SPEED;duration=160;level=3;} @self
  - potion{type=DAMAGE_RESISTANCE;duration=160;level=1;} @self