Audio doesn't play in game just in studio? .~.

Ok so when I tested the script in studio it worked fine, but then when I went in game it didn't play the audio. I looked for many solutions and failed, if any of you know how to fix it please tell me how, I would really appreciate it. :)

repeat wait() until game.Players.LocalPlayer.Character

while wait() do
			for i,v in pairs(game.Players:GetChildren())do
			if (v.Character.Head.Position - script.Parent.Position).magnitude <= 100 then
			game.Players.LocalPlayer.PlayerGui.Rain.Volume = 0.5
		else 
			game.Players.LocalPlayer.PlayerGui.Rain.Volume = 0
			end
			end
			end

Put it in a local script. That's all to it.