Roblox Studio is not recognizing my code (W001 unknown global)?

I am trying to code stats into my game and it keeps giving me an error on nil value every time I attempt to run the game I believe the cause of this to be the W001 unknown global problem on my WaitForChild.

local plr = game:GetService("Players").LocalPlayer

function update()
	local Stats = game:GetService("ReplicatedStorage")WaitForChild("Stats")WaitForChild(plr.Name)
	for i,v in pairs(script.Parent.Stats:GetChildren()) do
		v.Text = Stats:FindFirstChild(v.Name).Value
		end
	end
while wait(1) do
	update()
end

is the code