Coin script isn't working?

I don't know what's wrong with this script. I see nothing wrong with it(perhaps i must've missed something), and there's no errors.

Basically, when you touch the coin, the script checks for your humanoid, if so it creates a variable to the player then adds 1 to the CoinsValue inside a gui in the player's PlayerGui. Then it turns all the decals inside the part, and the part's transparency to 1. It then turns the debounce on so it doesn't repeat for 20 seconds. AND then after 20 seconds, it becomes visible and the debounce turns off.

script:

while true do
    wait()
    script.Parent.Rotation = script.Parent.Rotation + Vector3.new(0, 0, 2)
end

debounce = true

script.Parent.Touched:connect(function(hit)
    print("touched")
    if hit.Parent.Humanoid ~= nil and debounce == true then
        print("humanoid found")
        local plr = game.Players:GetPlayerFromCharacter(hit.Parent)
        plr.PlayerGui.Coins.TextLabel.CoinsValue.Value = plr.PlayerGui.Coins.TextLabel.CoinsValue.Value + 1
        script.Parent.Transparency = 1
        print("destroying coin")
        debounce = false
        for i,v in pairs(script.Parent:GetChildren()) do
            if v.Name == "Decal" and debounce == false then
                v.Transparency = 1
            end
        end
    end
    print("resetting coin")
    wait(20)
    debounce = true
    script.Parent.Transparency = 0
    for i,v in pairs(script.Parent:GetChildren()) do
        if v.Name == "Decal" and debounce == true then
            v.Transparency = 0
        end
    end
end)

It doesn't print anything in the output either.