Idk why it isnt working i see no fault?

local Player = game.Players.LocalPlayer
local Humaniod = Player.Character.Humaniod
local Health = script.Parent
while wait()do
    Health.Size = UDim2.new((Humaniod.Health / Humaniod.MaxHealth)*0.975,0,0.9,0)
    if Humaniod.Health <= 50 then
        Health.BackgroundColor3 = Color3.new(181,0,0)
    end
    if Humaniod.Health <= 25 then
        Health.BackgroundColor3 = Color3.new(181,0,0)
    end
end

16:50:16.207 - Humaniod is not a valid member of Model~~~~~~~~~~~~~~~~~

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