Lua Boss lever travel

[noshirtstan]

Hey folks, I'm trying to get this script to work properly, but everytime i try to use it, i get the following error.

Lua Script Error: [Action Interface]
data/actions/scripts/quests/floorboss1.lua:onUse
data/actions/scripts/quests/floorboss1.lua:68: attempt to call method 'getThing' (a nil value)
stack traceback:
        [C]: in function 'getThing'
        data/actions/scripts/quests/floorboss1.lua:68: in function <data/actions/scripts/quests/floorboss1.lua:45>

Here is the code that I have so far.

local area = { --This checks a square area defined by the top left and bottom right positions
    min = {x = 242, y = 1929}, --Set this to the top left square of area you want to check
    max = {x = 242, y = 1931} --Set this to the bottom right square of area you want to check
}

local area_teleport_to = {
    min = {x = 237, y = 1929}, -- Area top left to teleport players
    min = {x = 239, y = 1931} -- Area bottom right to teleport players
}

local posz = 15 --Floor its checking

local Config = {
        bossName = 'Rat', -- boss name
        bossPosition = Position(223, 1934, 15), -- Boss Position
        centerPosition = Position(230, 1931, 15), -- Center Room
        exitPosition = Position(237, 1922, 15), -- Exit Position
        rangeX = 1,
        rangeY = 1,
        time = 5, -- time in minutes to remove the player
}

local function roomIsOccupied(centerPosition, rangeX, rangeY)
    local spectators = Game.getSpectators(centerPosition, false, false, rangeX, rangeX, rangeY, rangeY)
    if #spectators ~= 0 then
        return true
    end
    return false
end

function clearBossRoom(centerPosition, rangeX, rangeY, exitPosition)
    local spectators, spectator = Game.getSpectators(centerPosition, false, false, rangeX, rangeX, rangeY, rangeY)
    for i = 1, #spectators do
        spectator = spectators[i]
        if spectator:isPlayer() then
            spectator:teleportTo(exitPosition)
            exitPosition:sendMagicEffect(CONST_ME_TELEPORT)
        end
        if spectator:isMonster() then
            spectator:remove()
        end
    end
end

function onUse(player, item, fromPosition, target, toPosition, isHotkey)
    local creature = Tile(player:getPosition()):getTopCreature()
    if not creature or not creature:isPlayer() then
        return true
    end

    if roomIsOccupied(Config.centerPosition, Config.rangeX, Config.rangeY) then
        player:sendCancelMessage("There is someone in the room.")
        return true
    end

    local monster = Game.createMonster(Config.bossName, Config.bossPosition)
    if not monster then
        return true
    end
  
    local area_x = area.min.x
    local area_y = area.min.y
  
    while area_x <= area.max.x do
        while area_y <= area.max.y do
            POS = {x = area_x, y = area_y, z = posz}
          
            PLAYER = Player(POS:getThing())
          
            if PLAYER then
                PLAYER:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'You have entered an ancient demon prison cell!')
                PLAYER:sendTextMessage(MESSAGE_EVENT_ADVANCE, 'You have fifteen minutes to kill and loot this boss, else you will lose that chance.')
                rand_pos = {x = math.random(area_teleport_to.min.x, area_teleport_to.max.x), y = math.random(area_teleport_to.min.y, area_teleport_to.max.y), z = posz}
                PLAYER:teleportTo(rand_pos)
                PLAYER:getPosition():sendMagicEffect(CONST_ME_TELEPORT)
            end
            area_x = area_x + 1
            area_y = area_y + 1
        end
    end
    addEvent(clearBossRoom, 60 * Config.time * 1000, Config.centerPosition, Config.rangeX, Config.rangeY, Config.exitPosition)
    item:transform(item.itemid == 9825 and 9826 or 9825)
    return true
end

Any thoughts?

Using TFS 1.2