Help with yalahari error.. rep++ and likes!

[Bacheer]

Hello, i get an error when i enter this tp on the picture.. It does teleports me to yalahari room quest but i get this strange error posted below.. Also it does not removes when i press on the globe so all can enter it while its a fight in the room..

The error:

[2:1:29.218] [Error - MoveEvents Interface]
[2:1:29.218] data/movements/scripts/yalahariclean.lua:onStepIn
[2:1:29.218] Description:
[2:1:29.218] data/movements/scripts/yalahariclean.lua:64: attempt to get length
of local 'players' (a number value)
[2:1:29.218] stack traceback:
[2:1:29.218] data/movements/scripts/yalahariclean.lua:64: in function <data/m
ovements/scripts/yalahariclean.lua:51>

The script:

function mapArea(fromPos, toPos, stack)
	-- Area iterator by Colandus.
	local pos = {x=fromPos.x, y=fromPos.y-1, z=fromPos.z}
	return function()
		if (pos.y < toPos.y) then
			pos.y = pos.y+1
		elseif (pos.x <= toPos.x) then
			pos.y = fromPos.y
			pos.x = pos.x+1
		else
			pos.x = fromPos.x
			pos.y = fromPos.y
			pos.z = pos.z+1
		end
		if (pos.x <= toPos.x and pos.y <= toPos.y or pos.z < toPos.z) then
			if (stack == nil) then
				return pos
			else
				pos.stackpos = stack
				--return pos, getTileThingByPos(pos)
				return pos, getThingfromPos(pos)
			end
		end
	end
end

function getMonstersfromArea(fromPos, toPos)
	-- Function by Penis xD.
	local monsters = {}
	for _, thing in mapArea(fromPos, toPos, 253) do
		if isMonster(thing.uid) == TRUE then
			table.insert(monsters, thing.uid)
		end
	end
	return monsters
end 

function getPlayersfromArea(fromPos, toPos)
	-- Function by Penis xD.
	local players = {}
	for _, thing in mapArea(fromPos, toPos, 253) do
		if isPlayer(thing.uid) == TRUE then
			table.insert(players, thing.uid)
		end
	end
	return players
end



function onStepIn(cid, item, pos, frompos)
	local config = {
		arena = {
			frompos = {x = 5757, y = 6233, z =10},
			topos = {x = 5773, y = 6254, z=10}
		}
	}
	
	local tp = {x=5766, y=6253, z=10} -- teleport to
	local players = getPlayersfromArea(config.arena.frompos, config.arena.topos)
	local monsters = getMonstersfromArea(config.arena.frompos, config.arena.topos)


		if #players  >= 0 then
			doTeleportThing(cid, tp)
			doSendMagicEffect(tp,10)
			end
		if #players  <= 0 then
		for _, monster in ipairs(monsters) do
			doRemoveCreature(monster)
		end
	end

	return true
end

The teleport on mapeditor & positions in game..

Rep++ and likes for help!!