script is not a valid member of LocalScript?

Heya! I found an old script of mine and I'm trying to use renderStepped instead ofwhile wait() do so its smoother however I keep getting script is not a valid member of LocalScript on line 19

local star = Instance.new("Part")
star.BrickColor = BrickColor.new("Institutional white")
star.FormFactor = "Custom"
star.Size = Vector3.new(40,40,40)
star.CanCollide = false
star.TopSurface = "Smooth"
star.BottomSurface = "Smooth"
star.Material = "SmoothPlastic"

local glow = Instance.new("PointLight")
glow.Brightness = 3
glow.Parent = star

local msh = Instance.new("SpecialMesh")
msh.MeshType = "Sphere"
msh.Parent = star


local motion = script.Script

game:GetService("RunService").RenderStepped:connect(function()
   	local dropClone = star:clone()
	dropClone.Position = Vector3.new(800,math.random(-300,300),math.random(-300,300))
	dropClone.Parent = game.Workspace
	dropClone.Anchored = true
	local move = motion:Clone()
	move.Parent = dropClone
	move.Disabled = false
end)