I have a gui that when pressed, finishes my intro, but its doesn't work?

I have this script that when you click, depending if you’ve done the intro or not, it should either go threw, or allow you to make a character. But when you do so, the players “DoneTest” value, doesn’t go to one as it should, it goes to 1 on that players screen only, any help? Heres part of the script.

PlayButton.MouseButton1Click:Connect(function()

if Player.leaderstats.DoneTest.Value == 1 then

script.Parent.ImageLabel.ImageTransparency = 1

script.Parent.ImageLabel.Visible = false

script.Parent.ImageLabel.Active = false

game.Lighting.Blur.Size = 15

wait ()

game.Lighting.Blur.Size = 12

wait ()

game.Lighting.Blur.Size = 9

wait ()

game.Lighting.Blur.Size = 6

wait ()

game.Lighting.Blur.Size = 5.5

wait ()

game.Lighting.Blur.Size = 5

script.Soundsx:Stop()

PlayButton:Destroy()

Camera.CameraType = Enum.CameraType.Custom

elseif Player.leaderstats.DoneTest.Value == 0 then

script.Parent.ImageLabel.ImageTransparency = 1

script.Parent.ImageLabel.Visible = false

script.Parent.ImageLabel.Active = false

game.Lighting.Blur.Size = 15

wait ()

game.Lighting.Blur.Size = 12

wait ()

game.Lighting.Blur.Size = 9

wait ()

game.Lighting.Blur.Size = 6

wait ()

game.Lighting.Blur.Size = 5.5

wait ()

game.Lighting.Blur.Size = 5

script.Soundsx:Stop()

script.SoundCreation:Play()

PlayButton:Destroy()

Camera.CFrame = game.workspace.CustomPart.CFrame

script.Parent.Hats.Visible = true

script.Parent.Hats.PLAY.MouseButton1Click:Connect(function()

script.SoundCreation:Stop()

Player.leaderstats.DoneTest.Value = 1

script.Parent.Hats:Destroy()

Camera.CameraType = Enum.CameraType.Custom

end)

end

end)