portal que reseta quest

bom a minha yalahar esta com um probleminha ela nao remove os monstros quando algum more ai quando o player volta ele pode ficar entrando e saindo do portal atacando o azerus asim que o azerus more ele e teleportado para a sala de itens

aki ta o script da yalahar

local config = {
	fromPos = {x=178,y=411,z=10}, -- posição superior esquerda do mapa, da area em que esta mapeado a area.
	toPos = {x=201,y=433,z=10} -- posição inferior direita do mapa, da area em que esta mapeado a area.
}

--Config-->
local statue_pos = {x = 190, y = 423, z = 10} -- posição do globo
local portal_quest01_pos = {x = 190, y = 432, z = 10, stackpos = 2} -- posição do tp no andar do globo
local portal_quest02_pos = {x = 191, y = 434, z = 9, stackpos = 2} -- posição do tp no andar de cima do globo
local removeFields = {1487,1492,1493,1494} -- tiles que são removidos ao sumonar os monsters.
--End Config-->

function removeFieldsTile() -- by jhon992
		local positionsCheck = {}
		local cFromPos = config.fromPos
		local cToPos = config.toPos
		for i = cFromPos.x, cToPos.x do
			positionsCheck[#positionsCheck+1] = {x=i, y = cFromPos.y, z = cFromPos.z, stackpos = 0}
			for j = cFromPos.y+1, cToPos.y do
				positionsCheck[#positionsCheck+1] = {x=i, y = j, z = cFromPos.z, stackpos = 0}
			end
		end
		for j=1, #positionsCheck do
			for i = 1, 5 do
				positionsCheck[j].stackpos = i
				local tile = getTileThingByPos(positionsCheck[j])
				if isInArray(removeFields, tile.itemid) then
					doRemoveItem(tile.uid)
				end
			end 
		end
end

function onUse(cid, item, frompos, item2, topos)
if getPlayerStorageValue(cid, 102504) > 0 then
	doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Você ja completou esta quest!")
	return true
elseif getMonsterInAreaAz() > 0 then
	doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Você não pode usar isto, existe monstros na área!")
	return true
end
function Potwory1()
	removeFieldsTile()
	if math.random (1,8) == 4 then
		doCreateMonster('Rift Brood', {x = statue_pos.x+1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Brood', {x = statue_pos.x-1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Brood', {x = statue_pos.x, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x-1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x+1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x+1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster("Azerus", {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		addEvent(Potwory2, 30 * 1000)
	else
		doCreateMonster('Rift Brood', {x = statue_pos.x+1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Brood', {x = statue_pos.x-1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Brood', {x = statue_pos.x, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x-1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x+1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x+1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster('Rift Worm', {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		doCreateMonster("Azerus", {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
		addEvent(Potwory2, 30 * 1000)
	end
	addEvent(RemovePortalAz, 240*1000)
end

function Potwory2()
	removeFieldsTile()
	removeAzerusMonstersInArea()
	doCreateMonster('Rift Brood', {x = statue_pos.x-1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Brood', {x = statue_pos.x, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Worm', {x = statue_pos.x-1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Worm', {x = statue_pos.x+1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
	doCreateMonster("Azerus1", {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	addEvent(Potwory3, 35 * 1000)
end

function Potwory3()
	removeFieldsTile()
	removeAzerusMonstersInArea()
	doCreateMonster('Rift Scythe', {x = statue_pos.x-1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Scythe', {x = statue_pos.x+1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Scythe', {x = statue_pos.x+1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('Rift Scythe', {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	doCreateMonster("Azerus2", {x = statue_pos.x-1, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	addEvent(Potwory4, 40 * 1000)
end

function Potwory4()
	removeFieldsTile()
	removeAzerusMonstersInArea()
	doCreateMonster('Azerus', {x = statue_pos.x, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('War Golem', {x = statue_pos.x+1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('War Golem', {x = statue_pos.x-1, y = statue_pos.y+1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('War Golem', {x = statue_pos.x, y = statue_pos.y-1, z = statue_pos.z, stackpos = 253})
	doCreateMonster('War Golem', {x = statue_pos.x-1, y = statue_pos.y, z = statue_pos.z, stackpos = 253})
end

if item.uid == 11223 and getThingfromPos(portal_quest01_pos).itemid ~= 9772 then
	doCreateItem(9772,1,portal_quest01_pos)
	doCreateItem(9772,1,portal_quest02_pos)
	addEvent(Potwory1, 0)
else
	doPlayerSendTextMessage(cid,22,"Sorry, not possible.")
end
return true
end

function RemovePortalAz()
if #getPlayerInAreaAz(config.fromPos, config.toPos) <= 0 then
	doRemoveItem(getThingfromPos(portal_quest01_pos).uid,1)
	doRemoveItem(getThingfromPos(portal_quest02_pos).uid,1)
else
	addEvent(RemovePortalAz, 10000)
end
end

function getPlayerInAreaAz(fromPos, toPos) -- by jami
local online = getPlayersOnline()
local players = {}
for i=1, #online do
	if isInArea(getPlayerPosition(online[i]), fromPos, toPos) then
		players[#players+1] = online[i]
	end
end
return players
end

function getMonsterInAreaAz() -- by jami
		local positionsCheck = {}
		local quantMonster = 0
		for i = config.fromPos.x, config.toPos.x do
			positionsCheck[#positionsCheck+1] = {x=i, y = config.fromPos.y, z = config.fromPos.z, stackpos = 0}
			for j = config.fromPos.y+1, config.toPos.y do
				positionsCheck[#positionsCheck+1] = {x=i, y = j, z = config.fromPos.z, stackpos = 0}
			end
		end
		for j=1, #positionsCheck do
			for i = 0, 255 do
				positionsCheck[j].stackpos = i
				local tile = getTileThingByPos(positionsCheck[j])
				if isMonster(tile.uid) then
					if isMonster(tile.uid) and not isSummon(tile.uid) then
						quantMonster = quantMonster + 1
					end
				end
			end 
		end
	return quantMonster
end

function removeAzerusMonstersInArea() -- by jhon992
		local positionsCheck = {}
		for i = config.fromPos.x, config.toPos.x do
			positionsCheck[#positionsCheck+1] = {x=i, y = config.fromPos.y, z = config.fromPos.z, stackpos = 0}
			for j = config.fromPos.y+1, config.toPos.y do
				positionsCheck[#positionsCheck+1] = {x=i, y = j, z = config.fromPos.z, stackpos = 0}
			end
		end
		for j=1, #positionsCheck do
			for i = 0, 255 do
				positionsCheck[j].stackpos = i
				local tile = getTileThingByPos(positionsCheck[j])
				if isMonster(tile.uid) then
					if getCreatureName(tile.uid) == "Azerus" then
						doRemoveCreature(tile.uid)
					end
				end
			end 
		end
end

se nao der se alguem puder me ajuda pode ser um portal que remove todos os monstros asim quando o portal estiver liberado e ele entra todos os monstro da quela area serao removidos se alguem puder me ajuda de alguma forma agradeço desde ja!