Lua 'isPlayer' (a nil value)

[Neptera]

I am trying to get a simple "add premium days" script to work.
Engine used is Nostalrius 7.72, please help me.

function onUse(player, item, fromPosition, target, toPosition)
    if not target:isPlayer() then
        player:sendTextMessage(MESSAGE_STATUS_SMALL, "Can not use this is, it is not human!")
        player:getPosition():sendMagicEffect(CONST_ME_POFF)
        return true
    end
    if target:isPlayer() then
    target:sendTextMessage(MESSAGE_STATUS_DEFAULT, "15 days of premium account has been added to your account!")
    target:getPosition():sendMagicEffect(CONST_ME_TELEPORT)
    target:addPremiumDays(15)
        doRemoveItem(item.uid, 1)
    end
    return true
end

 

[Mateus Robeerto]

try!

function onUse(player, item, fromPosition, target, toPosition)
    if not target or not target:isCreature() then
        player:sendTextMessage(MESSAGE_STATUS_SMALL, "You cannot use this on a non-creature target.")
        player:getPosition():sendMagicEffect(CONST_ME_POFF)
        return true
    end

    if target:isPlayer() then
        target:sendTextMessage(MESSAGE_STATUS_DEFAULT, "15 days of premium account have been added to your account!")
        target:getPosition():sendMagicEffect(CONST_ME_TELEPORT)
        target:addPremiumDays(15)
        item:remove(1)
    end

    return true
end