Configuración npcs de vocación

Muy buenas,

Mi problema es que al configurar los npc de vocation me da un error en el server, según el exe en el "getcreaturestorage"
El script es este:
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local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)

function onCreatureAppear(cid) npcHandler:onCreatureAppear(cid) end
function onCreatureDisappear(cid) npcHandler:onCreatureDisappear(cid) end
function onCreatureSay(cid, type, msg) npcHandler:onCreatureSay(cid, type, msg) end
function onThink() npcHandler:onThink() end

item = 'You do not have the required Level or You Already have a Vocation!.'
done = 'Congratulations now you are knight, Go to the dungeon and take your items and hunt.'

function creatureSayCallback(cid, type, msg)
if(not npcHandler:isFocused(cid)) then
return false
end

if msgcontains(msg, 'ok') then
selfSay('Do you Want to become a knight?', cid)
elseif msgcontains(msg, 'yes') then
                       if(getPlayerLevel(cid) > 1) then                  
selfSay('Say it Proudly: Yes, I Want to Become a knight!', cid)
talk_state = 1
else
selfSay('You do not have the required Level or You Already have a Vocation!.', cid)
talk_state = 0
end
elseif msgcontains(msg, 'knight') and talk_state == 1 then
talk_state = 0
               if getCreatureStorage(cid, 43211) == 1 == FALSE then
selfSay(done, cid)
doPlayerSetVocation(cid, 4)
                       setPlayerStorageValue(cid, 43211,1)
                       doSendMagicEffect(getCreaturePosition(cid), 14)
else
selfSay(item, cid)
end
elseif msgcontains(msg, 'no') and (talk_state >= 1 and talk_state <= 5) then
selfSay('Ok than.')
talk_state = 0
end
return true
end

npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:addModule(FocusModule:new())
_________________________________________

El error es:
Knight Hykrion.lua: onCreatureSay
Knight Hykrion.lua: attempt to call global "getCreatureStorage" (a nil value).
Stack traceback:
in function "getCreatureStorage"
Knight Hykrion.lua: in function "callback"
npchandler.lua: in function "oncreatureSay"
Knight Hykrion.lua: in function (data/npc/scripts/Knight Hykrion.lua

adivinando tu consola y por la cosas que vero cambia tu

Código:


getCreatureStorage

por

Código:

getPlayerStorageValue

Funciona 100%

Gracias!