Lua action reward chest

Alguem sabe me ajudar?

 

Here's my error

Lua Script Error: [Action Interface]

data/actions/scripts/reward_chest.lua:OnUse

data/actions/scripts/reward_chest.lua:10: attempt to call method 'getAttribute'

(a nil value)

stack traceback:

[C]: in function 'getAttribute'

data/actions/scripts/reward_chest.lua:10: in function <data/actions/scri

pts/reward_chest.lua:1>

 

Here's my script

function onUse(player, item, fromPosition, target, toPosition, isHotkey)

    -- Reward Chest

    if item.itemid == 21584 then

        if player:getExhaustion(REWARD_CHEST.STORAGE) > 0 then

            return player:sendCancelMessage('You need to wait ' .. string.diff(player:getStorageValue(REWARD_CHEST.STORAGE) - os.time()) .. ' before using this chest again.')

        end

        player:updateRewardChest()

    -- Boss Corpse

    elseif item.actionid == 21584 then

        local reward = REWARD_CHEST.LOOT[tonumber(item:getAttribute('text'))][player:cid()]

        if reward then

            local rewardBag = Container(doCreateItemEx(REWARD_CHEST.CONTAINER, 1))

            addContainerItems(rewardBag, reward)

            if player:getCapacity() < rewardBag:getCapacity() then

                return player:sendCancelMessage(RETURNVALUE_NOTENOUGHCAPACITY)

            end

 

            if player:addItemEx(rewardBag, false) == RETURNVALUE_NOERROR then

                REWARD_CHEST.LOOT[tonumber(targetitem:getAttribute('text'))][player:getGuid()] = nil

                player:sendCancelMessage('You have picked up a reward container.')

            else

                player:sendCancelMessage(RETURNVALUE_NOTENOUGHROOM)

                return true

            end

        end

    end

    return false

end

 

thanks