Lua How do i fix this script?

[snacky]

EDIT Using TFS 4.0 (8.60 engine)

Hello, otlanders, can someone help me on this please:

I know its a stupid problem, but my skills doesnt help me that much.

This scripts work with a Teleport, if nobody is on the room, you may enter the teleport, then it should summon a Monster, in a previously set location, and teleport your character to that location. (It works ATM, but, once stepped on the teleport, i get several errors of "Tile Not Found".

It does teleports me, but i know something is wrong on it. I really appreaciate your help


ERRORS:

Error - MoveEvents Interface
data/movements/scripts/portal.luanStepIn
Description:
<luaGetThingFromPos> Tile not found

Error - MoveEvents Interface
data/movements/scripts/portal.luanStepIn
Description:
<luaGetThingFromPos> Tile not found

The code:

function onStepIn(cid, item, frompos, item2, topos)
    local room = { -- room with Tide
    fromX = 31946,
    fromY = 32870,
    fromZ = 1,
    toX = 31968,
    toY = 32889,
    toZ = 1}
local monster_pos = {
[1] = {pos = {x=31958, y=32883, z=1}}
}
    local player_pos = {x=31954, y=32876, z=1}
    local cansel_pos = {x=31864, y=32890, z=1}
local monster = "Venom"
local storageid = 64001
if item.actionid == storageid then
killedhide = getPlayerStorageValue(cid,storageid)
if killedhide == -1 then
local monster_room = false
local monsters = {}
local i = 1
for x = room.fromX, room.toX do
for y = room.fromY, room.toY do
for z = room.fromZ, room.toZ do
local pos = {x=x, y=y, z=z, stackpos = 253}
local thing = getThingfromPos(pos)
if isPlayer(thing.uid) then
doPlayerSendTextMessage(cid,19,"There is already some one in the quest room.")
return true
elseif isMonster(thing.uid) then
monsters = getThingfromPos({x=x, y=y, z=z, stackpos=253})
i = i+1
monster_room = true
end
end
end
end
if monster_room then
for r = 1, #monsters do
doRemoveCreature(monsters[r].uid)
end
end
for _, area in pairs(monster_pos) do
doSummonCreature(monster,{x=31958, y=32883, z=1})
--setPlayerStorageValue(cid,storageid,1)
end
doTeleportThing(cid, player_pos)
else
doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR,"You have already done this quest.")
doTeleportThing(cid, cansel_pos)
end
end
return true
end