TFS 0.X Why this script don't work? help

[Pniaku]

Hi all, why this dont work? this dont add 100 Max hp to player :/

function onUse(cid, item, fromPosition, itemEx, toPosition)
       
        doPlayerAddMaxHealth(cid, 100)
        doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "You get 100 HP Points!")
        doSendMagicEffect(getThingPos(cid), 5)
        doRemoveItem(item.uid)
       
    return true
end

Edit: How to add Player Max HP with function on Use?

 

[Rombadr]

function onUse(cid, item, fromPosition, itemEx, toPosition)
    setCreatureMaxHealth(cid, getCreatureMaxHealth(cid) + 100)
    doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "You get 100 HP Points!")
    doSendMagicEffect(getThingPos(cid), 5)
    doRemoveItem(item.uid)
    return true
end