New ToolScript with QuantityText 2 (LocalScript)

local Tool = script.Parent;

local player = game.Players.LocalPlayer
local QuantityLabel = player.PlayerGui:WaitForChild("QuantityGui").quantityLabel

enabled = true

function onActivated()
    if not enabled  then
        return
    end

    enabled = false

    wait(.8)

    local Humanoid = player.Character:FindFirstChild("Humanoid")
    local EatAnimation = Humanoid:LoadAnimation(script.Parent.EatAnimation)

    if (Humanoid ~= nil) then
        if (Humanoid.MaxHealth > Humanoid.Health + 1.6) then
            Humanoid.Health = Humanoid.Health + 1.6
        else
            if Humanoid.Health == Humanoid.MaxHealth then
                if Tool:WaitForChild("stacks") and Tool.stacks.Value > 1 then
                    print(Tool.Name.." ("..Tool.stacks.Value..")")

                    Tool.stacks.Value = Tool.stacks.Value - 1
                    script.Parent.heal:Play()
                    EatAnimation:Play()
                else
                    Tool:Destroy()
                    QuantityLabel.Visible = false
                end
            end
        end
    end

    enabled = true

end

Tool:WaitForChild("stacks").Changed:Connect(function(Value)
    QuantityLabel.Text = "Quantity: "..Value
end)
QuantityLabel.Text = "Quantity: "..Tool.stacks.Value

script.Parent.Activated:connect(onActivated)

script.Parent.Equipped:Connect(function()
    QuantityLabel.Visible = true
    QuantityLabel.Text = "Quantity: "..Tool.stacks.Value
end)

script.Parent.Unequipped:Connect(function()
    QuantityLabel.Visible = false
end)