Index Nil error with waitforchild can anyone help?

local player = game.Players.LocalPlayer
local leaderstats = player:WaitForChild("leaderstats")

leaderstats.Views.Changed:Connect(function()
	script.Parent.Text = leaderstats.Views.Value
end)

ERROR:Players.Not_Prototype.PlayerGui.ScreenGui.Counter.Numbers.Script:2: attempt to index nil with 'WaitForChild'

Line:2