NPC doesn't answer?

[GarQet]

Hello I made a simple script to my OT but unfortunately it doesn't work correctly.
NPC doesn't answer when i say 'mieszanka', behaves as if it froze. I don't see any bugs in the code as well as in the console. Maybe someone of you see trifle mistake?
This is the script:

local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)
local talkState = {}
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
function creatureSayCallback(cid, type, msg)
if(not npcHandler:isFocused(cid)) then
return false
end
local talkUser = NPCHANDLER_CONVBEHAVIOR == CONVERSATION_DEFAULT and 0 or cid

    local storage = getPlayerStorageValue(cid, 300)
    local storage1 = getPlayerStorageValue(cid, 301)
    local storage2 = getPlayerStorageValue(cid, 302)
    local storage3 = getPlayerStorageValue(cid, 303)
    local storage4 = getPlayerStorageValue(cid, 304)

    local storage10 = getPlayerStorageValue(cid, 400)
    local storageROT = getPlayerStorageValue(cid, 35003)
    local storageROTQ = getPlayerStorageValue(cid, 35008)
    local killedRotworm = getPlayerStorageValue(cid, 35003)
    local killedRotwormQ = getPlayerStorageValue(cid, 35008)
    
if(msgcontains(msg, 'vip access')) then
        selfSay('Widze ze juz troche wiesz na temat prywatnych expowisk i chcesz z nich korzystac do woli...?', cid)
        selfSay('Pamietaj! Musisz spelnic 10 misji aby otrzymac odemnie wspanialy vip access!', cid)
end
    if msgcontains(msg, 'tak') then
        selfSay('Pierwsza misja - {mieszanka}: Przynies mi 10 kawalkow miesa (ham), 10 skrzydelek kurczaka (chicken feathers) i 10 grudek brudu (lump of dirt)!', cid)
        talkState[cid] = 1    
    end

        if msgcontains(msg, 'mieszanka') then  
        if(storage == 1) then
            selfSay('Zakonczyles pierwsza misje - mieszanka, mozesz przejsc do kolejnej {spotkanie}.', cid)
        else
        end

    elseif(msg == 'mieszanka') then 
        if(talkState[cid] == 1) then
            if(doPlayerRemoveItem(cid, 2671, 10) == TRUE) and (doPlayerRemoveItem(cid, 5890, 10) == TRUE) and (doPlayerRemoveItem(cid, 10608, 10) == TRUE) then
                setPlayerStorageValue(cid, 300, 1)
                doPlayerAddExperience(cid, 3000)
                doPlayerAddItem(cid, 2160, 2)
                selfSay('Dziekuje za pomoc! Pierwsza misja zakonczona, mozesz przejsc do drugiej misji - {spotkanie}. Za ta misje dostales: 3000 experience oraz 2 crystal coins.', cid)
            else
                selfSay('Musisz miec wiecej przedmiotow, aktualna ich ilosc jest niewystarczaja!', cid)
                end
            end
            end
    return true
end

 

[Grehy]

I would just try to use

if getPlayerStorageValue(cid, 300) == 1 then

No point in using a local if it's only going to get called once, I don't see what else would be the problem if it only freezes with that word