Erro GoBack

[25/11/2019 15:48:07] [Error - Action Interface] 
[25/11/2019 15:48:07] data/actions/scripts/Basic/goback.lua:onUse
[25/11/2019 15:48:07] Description: 
[25/11/2019 15:48:07] data/actions/scripts/Basic/goback.lua:140: attempt to perform arithmetic on a nil value
[25/11/2019 15:48:08] stack traceback:
[25/11/2019 15:48:08]     data/actions/scripts/Basic/goback.lua:140: in function <data/actions/scripts/Basic/goback.lua:15>

local EFFECTS = {
    --[OutfitID] = {Effect}
    ["Magmar"] = 35,   
    ["Shiny Magmar"] = 35,
    ["Shiny Magmortar"] = 35,
    ["Shiny Electivire"] = 48,
    ["Magmortar"] = 35,
    ["Electivire"] = 48,    
    ["Jynx"] = 17,          --alterado v1.5
    ["Shiny Jynx"] = 17, 
    ["Piloswine"] = 205,  --alterado v1.8
    ["Swinub"] = 205,   
}

function onUse(cid, item, frompos, item2, topos)

if exhaustion.get(cid, 6666) and exhaustion.get(cid, 6666) > 0 then return true end
if isRiderOrFlyOrSurf(cid) then return true end

if getPlayerStorageValue(cid, 17000) >= 1 or getPlayerStorageValue(cid, 17001) >= 1 or getPlayerStorageValue(cid, 63215) >= 1 
or getPlayerStorageValue(cid, 75846) >= 1   then    --alterado v1.9 <<
doPlayerSendCancel(cid, "You cant use ur poke while riding")
   return true                                                                                                                        
end

local ballName = getItemAttribute(item.uid, "poke")
local btype = getPokeballType(item.itemid)
local usando = pokeballs[btype].use

local effect = pokeballs[btype].effect
    if not effect then
        effect = 21
    end
    
unLock(item.uid) --alterado v1.8

if item.itemid == usando and #getCreatureSummons(cid) > 0 then                           
    local summon = getCreatureSummons(cid)[1]
    if getPlayerStorageValue(summon, 9658783) == 1 and isInArray({"Aggron", "Sudowoodo", "Mega Aggron"}, getCreatureName(summon)) then
       doKillWildPoke(getCreatureSummons(cid)[1], getCreatureSummons(cid)[1])
       doPlayerSendCancel(cid, "This pokemon is fainted.")
       if isInDuel(cid) then
          doRemoveCountPokemon(cid)
       end
       return true
    end

    if getPlayerStorageValue(cid, 990) == 1 then -- GYM
        doPlayerSendCancel(cid, "You can't return your pokemon during gym battles.")
    return true
    end
    if #getCreatureSummons(cid) > 1 and getPlayerStorageValue(cid, 212124) <= 0 then     --alterado v1.6
       if getPlayerStorageValue(cid, 637501) == -2 or getPlayerStorageValue(cid, 637501) >= 1 then  
          BackTeam(cid)       
       end
    end   
    if #getCreatureSummons(cid) == 2 and getPlayerStorageValue(cid, 212124) >= 1 then
       doPlayerSendCancel(cid, "You can't do that while is controling a mind")
       return true     --alterado v1.5
    end

    if #getCreatureSummons(cid) <= 0 then
        if isInArray(pokeballs[btype].all, item.itemid) then
            doTransformItem(item.uid, pokeballs[btype].off)
            doItemSetAttribute(item.uid, "hp", 0)
            doPlayerSendCancel(cid, "This pokemon is fainted.")
            return true
        end
    end
    
    

    local cd = getCD(item.uid, "blink", 30)
    if cd > 0 then
       setCD(item.uid, "blink", 0)
    end
    
    local z = getCreatureSummons(cid)[1]
    
    if getCreatureCondition(z, CONDITION_INVISIBLE) and not isGhostPokemon(z) then
       return true
    end
    
    if isInDuel(cid) then
       doRemoveCountPokemon(cid)
    end
    
    checkGiveUp(cid)
    
    doReturnPokemon(cid, z, item, effect)
    doPlayerSendCancel(cid, '12//,hide') --alterado v1.7
    doSendPlayerExtendedOpcode(cid, opcodes.OPCODE_DITTO_MEMORY, "sair") -- ditto memory system
    

elseif item.itemid == pokeballs[btype].on then

        if #getCreatureSummons(cid) >= 1  then
       doPlayerSendCancel(cid, "You can't do that.")
       BackTeam(cid) 
       return true     --alterado v1.5
    end
    if item.uid ~= getPlayerSlotItem(cid, CONST_SLOT_FEET).uid then
        doPlayerSendCancel(cid, "You must put your pokeball in the correct place!")
    return TRUE
    end

    -- rever a seguranca do pokemon ser sumanado com 0 de hp

    local pokemon = getItemAttribute(item.uid, "poke")
    
    if not pokes[pokemon] then
    return true
    end

----------------------- Sistema de nao poder carregar mais que 3 pokes lvl baixo e + q 1 poke de lvl medio/alto ---------------------------------
if not isInArray({5, 6}, getPlayerGroupId(cid)) then
   local balls = getPokeballsInContainer(getPlayerSlotItem(cid, 3).uid)
   local low = {}
   local lowPokes = {"Rattata", "Caterpie", "Weedle", "Oddish", "Pidgey", "Paras", "Poliwag", "Bellsprout", "Magikarp", "Hoppip", "Sunkern"}
   if #balls >= 1 then
      for _, uid in ipairs(balls) do
          local nome = getItemAttribute(uid, "poke")
          if not isInArray(lowPokes, pokemon) and nome == pokemon and not isGod(cid) then
             return doPlayerSendTextMessage(cid, 27, "Sorry, but you can't carry two pokemons equals!")
          else
             if nome == pokemon then
                table.insert(low, nome)
             end
          end
      end
   end
if #low >= 3 then
   return doPlayerSendTextMessage(cid, 27, "Sorry, but you can't carry more than three pokemons equals of low level!")
end   
end
---------------------------------------------------------------------------------------------------------------------------------------------------

    local x = pokes[pokemon]
    local boost = getItemAttribute(item.uid, "boost") or 0
    local levelpoke = getItemAttribute(item.uid, "level")*2
    
    
    if getPlayerLevel(cid) < 220 and (levelpoke >=160 and levelpoke <=178) then 
    doPlayerSendCancel(cid, "You need level (220) to use this pokemon.")
       return true
    end
    
    if getPlayerLevel(cid) < 250 and (levelpoke >=180) then 
    doPlayerSendCancel(cid, "You need level (250) to use this pokemon.")
       return true
    end
    
    if getPlayerLevel(cid) < levelpoke then
    doPlayerSendCancel(cid, "You need level ("..levelpoke..") to use this pokemon.")
       return true
    end
    
    if getPlayerLevel(cid) < (x.level+boost) and getPlayerLevel(cid) < levelpoke * 2 then
       doPlayerSendCancel(cid, "You need higher level to use this pokemon.")
       return true
    end
    
    ---------------------------- Sistema pokes de clan --------------------------------------
    local shinysClan = {
    ["Shiny Fearow"] = {4, "Wingeon"},
    ["Shiny Flareon"] = {1, "Volcanic"},
    ["Shiny Vaporeon"] = {2, "Seavel"}, 
    ["Shiny Jolteon"] = {9, "Raibolt"},
    ["Shiny Hypno"] = {7, "Psycraft"},           
    ["Shiny Golem"] = {3, "Orebound"},
    ["Shiny Vileplume"] = {8, "Naturia"},
    ["Shiny Nidoking"] = {5, "Malefic"},
    ["Shiny Hitmontop"] = {6, "Gardestrike"},   --alterado v1.4
    }
    
    if shinysClan[pokemon] and getPlayerGroupId(cid) < 4 then  --alterado v1.9 \/
       if getPlayerClanNum(cid) ~= shinysClan[pokemon][1] then
          doPlayerSendCancel(cid, "You need be a member of the clan "..shinysClan[pokemon][2].." to use this pokemon!")
          return true   
       elseif getPlayerClanRank(cid) < 3 then
          doPlayerSendCancel(cid, "You need be atleast rank 3 to use this pokemon!")
          return true
       end
    end
    --------------------------------------------------------------------------------------
    local isNicked, nick, pokemonRealName = false, pokemon, pokemon
    local pokeSourceCode = "sim"
    
    if getItemAttribute(item.uid, "copyName") then -- ditto system
        pokemon = getItemAttribute(item.uid, "copyName")
        pokemonRealName = getItemAttribute(item.uid, "poke")
    end
    
    if getItemAttribute(item.uid, "level") then -- level system
        levelin = getItemAttribute(item.uid, "level")
    end
    
    
    if getItemAttribute(item.uid, "nick") and getItemAttribute(item.uid, "nick") ~= "" then
        isNicked = true nick = getItemAttribute(item.uid, "nick")
        pokeSourceCode = doCreateMonsterNick(cid, pokemon, ""..getItemAttribute(item.uid, "nick").."["..levelin.."]", getThingPos(cid), true)
    else 
        pokeSourceCode = doCreateMonsterNick(cid, pokemon, ""..retireShinyName(pokemonRealName).."["..levelin.."]", getThingPos(cid), true) -- chama o pokemon com nome verdadeiro, mas se for shiny ja tera seu nome alterado
    end
    
    
    
    if pokeSourceCode == "Nao" then
       doSendMsg(cid, "Não há espaço para seu pokemon.")
       return true 
    end       
    

    local pk = getCreatureSummons(cid)[1]
    
          setMoveSummon(cid, true)
    if not isCreature(pk) then return true end
    
    ------------------------passiva hitmonchan------------------------------
    if isSummon(pk) then                                                  --alterado v1.8 \/
       if pokemon == "Shiny Hitmonchan" or pokemon == "Hitmonchan" then
          if not getItemAttribute(item.uid, "hands") then
             doSetItemAttribute(item.uid, "hands", 0)
          end
          local hands = getItemAttribute(item.uid, "hands")
          doSetCreatureOutfit(pk, {lookType = hitmonchans[pokemon][hands].out}, -1)
       end
    end
    -------------------------------------------------------------------------
    ---------movement magmar, jynx-------------
    if EFFECTS[getCreatureName(pk)] then             
       markPosEff(pk, getThingPos(pk))
       sendMovementEffect(pk, EFFECTS[getCreatureName(pk)], getThingPos(pk))  
    end
    --------------------------------------------------------------------------      

    doCreatureSetLookDir(pk, 2)
    

    adjustStatus(pk, item.uid, true, true, true)
    doRegenerateWithY(getCreatureMaster(pk), pk)
    doCureWithY(getCreatureMaster(pk), pk)

    doTransformItem(item.uid,  pokeballs[btype].use)

    local mgo = gobackmsgs[math.random(1, #gobackmsgs)].go:gsub("doka", (isNicked and nick or retireShinyName(pokemon)))
    doCreatureSay(cid, mgo, TALKTYPE_ORANGE_1)
    
    doSendMagicEffect(getCreaturePosition(pk), effect)
    doSendParticleAura(pk, 81)
    doPlayerSendCancel(cid, '12//,show')
    doSendPlayerExtendedOpcode(cid, opcodes.OPCODE_BATTLE_POKEMON, tostring(pk))
    setPokemonGhost(pk)
        
    
else

    doPlayerSendCancel(cid, "This pokemon is fainted.")

end
    
    -- otclient life
        doSendLifePokeToOTC(cid)
        doUpdateMoves(cid)
    -- otclient life
    
return true
end