Chamber Not Working

Chamber:
  name: Chamber
  command: ch
  prefix: '&8[Chamber]&e'
  gameSize:
    nTeams: 1+
    teamSize: '1'
  nLives: '5'
  victoryCondition: highestKills
  times:
    matchTime: 240
  tracking:
    database: Chamber
    rated: true
    useTrackerMessages: false
  arenaType: DeathMatch
  arenaClass: DeathMatch
  defaults:
    options: []
  onEnter:
    options:
    - STOREALL
  onLeave:
    options:
    - RESTOREALL
  preReqs:
    options: []
  onJoin:
    options:
    - teleportWaitRoom
    - alwaysJoin
  onOpen:
    options:
    - pvpOff
  onStart:
    options:
    - teleportIn
    - pvpOn
    giveClass
      default: instant
  onComplete:
    options:
    - teleportOut
    - clearInventory
  onSpawn:
    options:
    - health=20.0
    - hunger=20
    - respawnWithClass
  onDeath:
    options:
    - clearInventory
    - randomRespawn
    - deEnchant
  winners:
    options:
    - health=20.0
    - hunger=20
    - deEnchant
  losers:
    options:
    - health=20.0
    - hunger=20
    - deEnchant