How Do I fix this?

I keep getting this code

Door=script.Parent running=true function OpenClose () if running then repeat Door.Position=Vector3.new(Door.Position.X+0.1) until Door.Position==Vector3.new(Door.Position.X+Door.Size.X) end running = false elseif running == false then running = true repeat Door.Position=Vector3.new(Door.Position.X-0.1) until Door.Position==Vector3.new(Door.Position.X-Door.Size.X) end end end end script.Parent.ClickDetector:connect(OpenClose)

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