Correção

amount = 2 -- Quantidade de levels que serão adicionados ao player

function onUse(cid, item)
        doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "You advanced from level "..getPlayerLevel(cid).." to level "..(getPlayerLevel(cid)+amount)..".")
        doPlayerAddLevel(cid, amount)
        doSendAnimatedText(getCreaturePosition(cid), "Texto", TEXTCOLOR_RED)
        doSendMagicEffect(getCreaturePosition(cid), 28)
        doRemoveItem(cid, item.uid, 1)
return true
end