Script not working

[MastaFlasta]

i got this script here, its supposed to create a teleport if all the switches are pulled , but it aint working somehow, ,aybe its outdated ;(

local config = {
	timeLimit = 500, -- in seconds, limit to check all switches
	teleport = {
		time = 1000 * 60 * 10, -- time to auto remove teleport
		pos = {x = 656, y = 311, z = 13}, -- where teleport will be created
		toPos = {x = 656, y = 310, z = 14} -- where teleport will be teleporting
	},

	switches = { --UIDs of switches
		6551,
		6552,
		6553,
		6554,
		6555,
		6556,
		6557,
		6558,
		6559,
		6560,
		6561
	},

	effect = {
		show = "no",
		text = "Gogogo!",
		magicEffect = 19
	}
}

config.effect.show = getBooleanFromString(config.effect.show)
local switchStates = {}
function onUse(cid, item, fromPosition, itemEx, toPosition)
	if(item.itemid == 1946) then
		doTransformItem(item.uid, 1945)
		table.remove(switchStates, item.uid)
		return TRUE
	end

	if(getTileItemById(config.teleport.pos, 1387).itemid ~= 0) then
		doPlayerSendCancel(cid, "Teleport is already open!")
		return TRUE
	end

	switchStates[item.uid] = 1
	if(table.maxn(switchStates) == #config.switches) then
		if(config.effect.show) then
			for _, uid in pairs(config.switches) do
				local pos = getThingPos(uid)
				doSendMagicEffect(pos, config.effect.magicEffect)
				doSendAnimatedText(pos, "Gogogo!", cid)
			end
		end

		switchStates = {}
		doCreateTeleport(1387, config.teleport.toPos, config.teleport.pos)
		addEvent(autoRemoveTeleport, config.teleport.time)
	end

	doTransformItem(item.uid, 1946)
	return TRUE
end

local function autoRemoveTeleport()
	local teleport = getTileItemById(config.teleport.pos, 1387).uid
	if(teleport ~= 0) then
		doRemoveItem(teleport)
	end
end

halp !