milk in viall npc dont sells

[tim26]

Hello i want made npc who sell vial of mill vial of beer etc i have that 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

local shopModule = ShopModule:new()
npcHandler:addModule(shopModule)


shopModule:addBuyableItem({'water'}, 2007, 1, 2, 'bottle of water')

shopModule:addBuyableItem({'slime'}, 2007, 6, 4, 'bottle of slime')


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 items = {[1] = 2190, [2] = 2182, [5] = 2190, [6] = 2182}
	if(msgcontains(msg, 'first rod') or msgcontains(msg, 'first wand')) then
		if(isSorcerer(cid) or isDruid(cid)) then
			if(getPlayerStorageValue(cid, 30002) == -1) then
				selfSay('So you ask me for a {' .. getItemNameById(items[getPlayerVocation(cid)]) .. '} to begin your advanture?', cid)
				talkState[talkUser] = 1
			else
				selfSay('What? I have already gave you one {' .. getItemNameById(items[getPlayerVocation(cid)]) .. '}!', cid)
			end
		else
			selfSay('Sorry, you aren\'t a druid either a sorcerer.', cid)
		end
	elseif(msgcontains(msg, 'yes')) then
		if(talkState[talkUser] == 1) then
			doPlayerAddItem(cid, items[getPlayerVocation(cid)], 1)
			selfSay('Here you are young adept, take care yourself.', cid)
			setPlayerStorageValue(cid, 30002, 1)
		end
		talkState[talkUser] = 0
	elseif(msgcontains(msg, 'no') and isInArray({1}, talkState[talkUser]) == TRUE) then
		selfSay('Ok then.', cid)
		talkState[talkUser] = 0
	end

	return true
end

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

in script is battle with water and bottle with slime when i say trade i see ony vial of slime and when i buy it it is a empty vial;/ whos can help me to do this full work in xml or lua?;/

 

[tim26]

refresh help please;/

 

[tim26]

help please i really need it!;/