Mob Arena Error

# MobArena v0.96.3 - Config-file
# Read the Wiki for details on how to set up this file: http://goo.gl/F5TTc
# Note: You -must- use spaces instead of tabs!
global-settings:
  enabled: true
  allowed-commands: /list, /pl
  update-notification: true
classes:
  Knight:
    items: diamond_sword, potion:8197:3
    armor: 306,307,308,309
  Tank:
    items: iron_sword, potion:8229:2
    armor: 310,311,312,313
  Archer:
    items: wood_sword, bow, arrow:256, potion:8197:3, bone
    armor: 298,299,300,301
  Chemist:
    items: stone_sword, potion:16428:30, potion:16388:8, potion:16389:20, potion:8197:3, potion:8226:1
    armor: 314,315,316,317
  Oddjob:
    items: stone_sword, flint_and_steel, netherrack:2, tnt:4, potion:8197:3
    armor: 298,299,300,301
  Pyro:
    items: gold_sword 34:1000;20:5, bow 34:1000;51:1;50:2, potion:8233:1, potion:8233:1, potion:8225:1, potion:8225:1, potion:8259:1, potion:8259:1, potion:8259:1, arrow
    armor: gold_boots 34:1000;1:2, gold_leggings 34:1000;1:2, gold_chestplate 34:1000;1:2, skull_item:3:1
    helmet: skull_item:3:1
  Pyro_axe:
    items: diamond_axe 34:10;16:25;20:5, potion:8233:1, potion:8233:1, potion:8233:1, potion:8229:1, potion:8229:1, potion:8229:1, potion:8226:1, potion:8226:1
    armor: leather_boots 34:1000;0:5, leather_leggings 34:1000;0:5, leather_chestplate 34:1000;0:5, leather_helmet 34:1000;0:5
    price: $1000000
  Wolfmaster:
    items: iron_sword 34:1000;16:2, bone:64, bone:64, potion:8233:1, potion:8233:1, potion:8225:1, potion:8225:1, potion:8226:1, potion:8226:1
    armor: leather_boots 0:3;34:1000, leather_leggings 0:3;34:1000, iron_chestplate 0:3;34:1000, leather_helmet 0:3;34:1000
  Demo:
    items: stone_sword 34:1000;16:3, potion:12:64, potion:12:64, potion:1:2, potion:9:2
    armor: chainmail_boots 0:3;34:1000, chainmail_leggings 0:3;34:1000, chainmail_chestplate 0:3;34:1000, chainmail_helmet 0:3;34:1000
arenas:
  Arena:1:
    settings:
      world: Minigames
      enabled: true
      protect: true
      entry-fee: ''
      clear-wave-before-next: false
      clear-boss-before-next: false
      clear-wave-before-boss: false
      soft-restore: false
      soft-restore-drops: false
      require-empty-inv-join: true
      require-empty-inv-spec: false
      hellhounds: false
      pvp-enabled: false
      monster-infight: false
      allow-teleporting: false
      spectate-on-death: true
      auto-respawn: true
      share-items-in-arena: false
      min-players: 1
      max-players: 50
      max-join-distance: 0
      first-wave-delay: 5
      wave-interval: 15
      final-wave: 0
      monster-limit: 10000
      monster-exp: false
      keep-exp: true
      food-regen: false
      lock-food-level: true
      player-time-in-arena: world
      auto-ignite-tnt: true
      auto-start-timer: 180
      start-delay-timer: 0
      auto-ready: false
      use-class-chests: false
      display-waves-as-level: true
      display-timer-as-level: false
      use-scoreboards: true
      isolated-chat: false
      global-join-announce: false
      global-end-announce: false
      show-death-messages: true
    waves:
      recurrent:
        def1:
          type: default
          priority: 150
          frequency: 10
          monsters:
            zombies: 1000
            skeletons: 1000
            spiders: 1000
            creepers: 1000
            wolves: 1000
        spec1:
          type: special
          priority: 10
          frequency: 4
          monsters:
            powered-creepers: 1000
            zombie-pigmen: 1000
            angry-wolves: 1000
            blazes: 1000
      single:
        swarm1:
          type: swarm
          wave: 6
          monster: slime
          amount: high
        bossSpider:
          type: boss
          wave: 10
          monster: cave_spider
          health: high
          abilities: arrows, root-target, throw-nearby
        bossSlime:
          type: boss
          wave: 13
          monster: slime
          health: medium
          abilities: fetch-distant, throw-nearby
        the_incredible_pigbeast:
          type: boss
          wave: 17
          monster: zombie_pigman
          health: psycho
          abilities: arrows, fireballs, throw-nearby
          ability-interval: 3
          ability-announce: true
        thunder_chicken:
          type: boss
          wave: 20
          monster: chicken
          health: high
          abilities: chain-lightning
          ability-interval: 10
          ability-announce: true
        type: boss
        wave: 7
        monster: zombie
        health: medium
        abilities: warp-to-player, disorient-target, shuffle-positions
        ability-interval: 2
        ability-announce: true
    rewards:
      waves:
        every:
          '3': feather, bone, stick
          '5': dirt:4, gravel:4, stone:4
          '10': iron_ingot:10, gold_ingot:8
        after:
          '7': minecart, storage_minecart, powered_minecart
          '13': iron_sword, iron_pickaxe, iron_spade
          '16': diamond_sword
    coords:
      spawnpoints:
        s1: 768,49,296,0.0,0.0,Minigames
        s2: 768,49,316,0.0,0.0,Minigames
        s3: 788,49,296,0.0,0.0,Minigames
        s4: 788,49,316,0.0,0.0,Minigames
        787,48,316: 787.5,48,316.5,0.0,0.0,Minigames
        788,48,315: 788.5,48,315.5,0.0,0.0,Minigames
        789,48,316: 789.5,48,316.5,0.0,0.0,Minigames
        788,48,317: 788.5,48,317.5,0.0,0.0,Minigames
        788,48,297: 788.5,48,297.5,0.0,0.0,Minigames
        789,48,296: 789.5,48,296.5,0.0,0.0,Minigames
        788,48,295: 788.5,48,295.5,0.0,0.0,Minigames
        787,48,296: 787.5,48,296.5,0.0,0.0,Minigames
        769,48,296: 769.5,48,296.5,0.0,0.0,Minigames
        768,48,295: 768.5,48,295.5,0.0,0.0,Minigames
        767,48,296: 767.5,48,296.5,0.0,0.0,Minigames
        768,48,297: 768.5,48,297.5,0.0,0.0,Minigames
        768,48,315: 768.5,48,315.5,0.0,0.0,Minigames
        769,48,316: 769.5,48,316.5,0.0,0.0,Minigames
        768,48,317: 768.5,48,317.5,0.0,0.0,Minigames
        767,48,316: 767.5,48,316.5,0.0,0.0,Minigames
      containers: {}
      p1: 765,41,293,0.0,0.0,Minigames
      p2: 791,56,319,0.0,0.0,Minigames
      arena: 778.4,48,306.15,0.0,0.0,Minigames
      lobby: 767,42,295,0.0,0.0,Minigames
      spectator: 778.4,56,306.15,0.0,0.0,Minigames
    class-limits:
      Demo: -1
      Pyro: -1
      Archer: -1
      Wolfmaster: -1
      Oddjob: -1
      Chemist: -1
      Tank: -1
      Pyro_axe: -1
      Knight: -1