Erro Shop

function onThink(interval, lastExecution, thinkInterval)
    local result = db.getResult("SELECT * FROM shop_history WHERE `processed` = 0;")
    
        if(result:getID() ~= -1) then
            while(true) do
                cid = getCreatureByName(tostring(result:getDataString("player")))
                product = tonumber(result:getDataInt("product"))
                itemr = db.getResult("SELECT * FROM shop_offer WHERE `id` = "..product..";")
                    if isPlayer(cid) then
                        local id = tonumber(itemr:getDataInt("item"))
                        local tid = tonumber(result:getDataInt("id"))
                        local count = tonumber(itemr:getDataInt("count"))
                        local tipe = tonumber(itemr:getDataInt("type"))
                        local productn = tostring(itemr:getDataString("name"))
                        local voc = tonumber(itemr:getDataInt("vocation"))
                        local look = tonumber(itemr:getDataInt("looktype"))
                        local outfit = {lookType = look}
                            if isInArray({5,8},tipe) then
                                if(voc == 0) then
                                    if getPlayerFreeCap(cid) >= getItemWeightById(id, count) then
                                        if isContainer(getPlayerSlotItem(cid, 3).uid) then
                                            received = doAddContainerItem(getPlayerSlotItem(cid, 3).uid, id,count)
                                            if received then
                                                doPlayerSendTextMessage(cid,19, "Você Recebeu Uma | "..productn.." | que comprou no Shop, Obrigado e Bom Uso da "..productn.." ")
                                                db.executeQuery("UPDATE `shop_history` SET `processed`='1' WHERE id = " .. tid .. ";")                                          
                                            else
                                                doPlayerSendTextMessage(cid,19, "Desculpa, Você não tem espaço para receber o item >> "..productn.." <<")
                                            end
                                        else
                                            doPlayerSendTextMessage(cid,19, "Desculpa, Você não tem espaço para receber >> "..productn.." <<")
                                        end
                                    else
                                        doPlayerSendTextMessage(cid,19, "Desculpa, você não tem cap para receber >> "..productn.." << (You need: "..getItemWeightById(id, count).." Capacity)")
                                    end
                                else
                                    doPlayerSendTextMessage(cid,19, "Você Recebeu Uma | "..productn.." | que comprou no Shop, Obrigado e Bom Uso da "..productn.." ")
                                    db.executeQuery("UPDATE `shop_history` SET `processed`='1' WHERE id = " .. tid .. ";") 
                                    doCreatureChangeOutfit(cid, outfit)
                                    doPlayerSetVocation(cid, voc)
                                end
                            elseif isInArray({6,7},tipe) then
                                    if tipe == 6 then
                                        bcap = 8
                                        bid = 1987
                                    elseif tipe == 7 then
                                        bcap = 20
                                        bid = 1988
                                    end
                                    if isItemRune(id) then
                                        count = 1
                                    end
                                    if getPlayerFreeCap(cid) >= (getItemWeightById(1987, 1) + getItemWeightById(id,count * bcap)) then
                                        local bag = doCreateItemEx(bid, 1)
                                            for i = 1,bcap do
                                                doAddContainerItem(bag, id, count)
                                            end
                                        received = doPlayerAddItemEx(getPlayerSlotItem(cid, 3).uid, bag)
                                        if received == RETURNVALUE_NOERROR then
                                            doPlayerSendTextMessage(cid,19, "You have received >> "..productn.." << from our shop system")
                                            db.executeQuery("UPDATE `shop_history` SET `processed`='1' WHERE id = " .. tid .. ";")
                                        else
                                            doPlayerSendTextMessage(cid,19, "Sorry, you don't have enough space to receive >> "..productn.." <<")
                                        end
                                    else
                                        doPlayerSendTextMessage(cid,19, "Sorry, you don't have enough capacity to receive >> "..productn.." << (You need: "..getItemWeightById(id, count).." Capacity)")
                                    end
                            end
                    end
                itemr:free()
                if not(result:next()) then
                    break
                end
            end
            result:free()
        end
    return true
end