Garage Does Not Work?

I made and scripted a garage with 2 buttons: a green one to open the garage and a red one to close it. Problem is, it works in edit mode but not in Play mode. Help? (And yes there is a ClickDetector present)

There are 2 parts: gh and hg

The code for the green button:

function onClicked()
    script.Parent.Parent.gh.CanCollide = false
    script.Parent.Parent.gh.Transparency = 1
    wait (0.3)
    script.Parent.Parent.hg.CanCollide = false
    script.Parent.Parent.hg.Transparency = 1
end


script.Parent.ClickDetector.MouseClick:connect(onClicked)

My code for the red button:

function onClicked()
    script.Parent.Parent.gh.CanCollide = true
    script.Parent.Parent.gh.Transparency = 0.6
    wait (0.3)
    script.Parent.Parent.hg.CanCollide = true
    script.Parent.Parent.hg.Transparency = 0
end


script.Parent.ClickDetector.MouseClick:connect(onClicked)