Attempt nil to index with leaderstats error?

Why wont this script work? Most of it does but it does not change the height leaderstat to + 1 like it should.

local debounce = false
script.Parent.Touched:Connect(function(hit)
	local hum = hit.Parent:FindFirstChildOfClass("Humanoid")
	if hum and game:GetService("Players"):GetPlayerFromCharacter(hit.Parent) and not debounce then
		debounce = true
		hum.BodyHeightScale.Value = hum.BodyHeightScale.Value + 0.1

		script.Parent.Transparency = 1
		script.Parent.CanCollide = false
		task.wait(5)
		script.Parent.Transparency = 0
		script.Parent.CanCollide = true
		debounce = false
		
		game.Players.LocalPlayer.leaderstats.Height.Value = game.Players.LocalPlayer.leaderstats.Height.Value + 1
		
	end
end)

Thanks!