Lua [TFS 0.X] Bossroom script is not removing players or creatures

[potinho]

Hello guys, i tried to adapt an anihilator script to create some bossrooms, monster is summoned and player position are validating, but when new players try to jump in, they can. Script is not validating players inside room or cleaning previous bosses created. What im doing wrong? None errors on console.

local config = {
    questLevel = 300,
    minimumPlayersRequired = 2,
    playerPositions = {
        {start = {x=1893, y=447, z=11}, destination = {x=1801, y=472, z=9}},
        {start = {x=1894, y=447, z=11}, destination = {x=1802, y=472, z=9}},
        {start = {x=1895, y=447, z=11}, destination = {x=1803, y=472, z=9}},
        {start = {x=1896, y=447, z=11}, destination = {x=1804, y=472, z=9}},
        {start = {x=1893, y=448, z=11}, destination = {x=1801, y=471, z=9}},
        {start = {x=1894, y=448, z=11}, destination = {x=1802, y=471, z=9}},
        {start = {x=1895, y=448, z=11}, destination = {x=1803, y=471, z=9}},
        {start = {x=1896, y=448, z=11}, destination = {x=1804, y=471, z=9}}
    },
    spawnMonsters = {
        {position = {x=1812, y=452, z=9}, monster = "Ulquiorra"}
    },
    roomPosition = {from = {x = 1800, y = 443, z = 9}, to = {x = 1819, y = 474, z = 9}},
    kickTime = 1 * 60,
    kickPosition = {x = 1899, y = 448, z = 11},
    lastEventUlquiorra = 0
}

function getCreaturesOnRoom()
    local creatures = {
        monsters = {},
        players = {}
    }

    for x = config.roomPosition.from.x, config.roomPosition.to.x do
        for y = config.roomPosition.from.y, config.roomPosition.to.y do
            local thing = getTopCreature({x = x, y = y, z = config.roomPosition.from.z})
            if thing.uid > 0 then
                local type = isPlayer(thing.uid) and "players" or "monsters"
                creatures[type][#creatures[type] + 1] = thing.uid
            end
        end
    end

    return creatures
end

function resetRoom(creatures)
    creatures = creatures or getCreaturesOnRoom()
    if #creatures.monsters > 0 then
        for i = 1, #creatures.monsters do
            local monster = creatures.monsters[i]
            if isCreature(monster) then
                doRemoveCreature(monster)
            end
        end
    end

    if #creatures.players > 0 then
        for i = 1, #creatures.players do
            local pid = creatures.players[i]
            if isPlayer(pid) then
                doTeleportThing(pid, config.kickPosition)
                doSendMagicEffect(getThingPosition(pid), CONST_ME_TELEPORT)
            end
        end
    end
end

function onUse(cid, item, frompos, item2, topos)
    if item.uid ~= 9102 then
        return true
    end

    local players = {}
    for i = 1, #config.playerPositions do
        local topPlayer = getTopCreature(config.playerPositions[i].start).uid
        if topPlayer > 0 and isPlayer(topPlayer) and getPlayerLevel(topPlayer) >= config.questLevel then
            players[#players + 1] = topPlayer
        end
    end

    if #players < config.minimumPlayersRequired then
        doPlayerSendCancel(cid, "Sorry, not enough players.")
        return false
    end

    local creatures = getCreaturesOnRoom()
    if #creatures.players > 0 then
        doPlayerSendCancel(cid, "There are players inside.")
        return false
    end

    if #creatures.monsters > 0 then
        resetRoom(creatures)
    end

    for i = 1, #players do
        doSendMagicEffect(getThingPosition(players[i]), CONST_ME_POFF)
        doTeleportThing(players[i], config.playerPositions[i].destination)
        doSendMagicEffect(getThingPosition(players[i]), CONST_ME_TELEPORT)
    end

    for i = 1, #config.spawnMonsters do
        doCreateMonster(config.spawnMonsters[i].monster, config.spawnMonsters[i].position)
        doSendMagicEffect(config.spawnMonsters[i].position, CONST_ME_TELEPORT)
    end

    if config.kickTime > 0 then
        stopEvent(config.lastEventUlquiorra)
        config.lastEventUlquiorra = addEvent(resetRoom, config.kickTime * 1000)
    end

    return doTransformItem(item.uid, item.itemid == 1945 and 1946 or 1945)
end