Whats the error in this script?

I'm making a coin turn in a circle around and around. Whats wrong in here?

local i = 0
repeat
	wait()
	script.Parent.CFrame = CFrame.new(script.Parent.CFrame.p),CFrame.Angles(script.Parent.CFrame.lookVector+Vector3.new(0,0,0.1))
until i==10

You don't need such a complicated script. Just use BodyPosition and BodyAngularVelocity and you can make it float and spin in midair without any scripts.