Lua Key with actionID in bag as reward from quest?

[Michaeel]

Hello, i wanto to make quest with rewards in bag but when i put key with actionID it doesn't work.

function onUse(cid, item, frompos, item2, topos)
	if item.uid == 62457 then
		if getPlayerStorageValue(cid,62457) == -1 then
			doPlayerSendTextMessage(cid,25,"You have found a bag.")
			local bag = doPlayerAddItem(cid,1987,1)
			doAddContainerItem(bag,2202,1)
			doAddContainerItem(bag,2151,2)
			doAddContainerItem(bag,2229,1)
			doAddContainerItem(bag,2230,1)
[B]		        doAddContainerItem(bag,2091,1)
			doItemSetAttribute(aid, 59874)[/B]
			setPlayerStorageValue(cid,62457,1)	
		else
			doPlayerSendTextMessage(cid,25,"This chest is empty. You've already done this quest!")
		end
	
	end
	return TRUE
end

2091 - key's ID
59874 - key's actionID
console:

(luaDoItemSetAttribute) Item not found

what's wrong?

 

[Cykotitan]

function onUse(cid, item, frompos, item2, topos)
	if getPlayerStorageValue(cid,62457) < 1 then
		doPlayerSendTextMessage(cid, 25, "You have found a bag.")
		local bag = doPlayerAddItem(cid, 1987, 1)
		doAddContainerItem(bag, 2202, 1)
		doAddContainerItem(bag, 2151, 2)
		doAddContainerItem(bag, 2229, 1)
		doAddContainerItem(bag, 2230, 1)
		local key = doAddContainerItem(bag, 2091, 1)
		doItemSetAttribute(key, "aid", 59874)
		setPlayerStorageValue(cid, 62457, 1)	
	else
		doPlayerSendTextMessage(cid, 25, "The chest is empty.")
	end
	return true
end