GUI works in Studio and another game but not in a the game I want it to?

Hello, I am not a very good scripter, in fact, I do not know how to script really at all, so help is very much appreicated. My problem is, I have a group team change gui that I got from free models, and it works in my "training base" but not in my "capital".It works in studio, however. I then thought it was a problem with the model. I edited the script so it should work, but again, it worked in Studio, but not ingame. Here are the scripts.

function Click(mouse) 
if script.Parent.Parent.Parent.Parent.Parent:IsInGroup(3363046) then 
script.Parent.Parent.Parent.Parent.Parent.TeamColor = BrickColor.new("Crimson") 
end 
end 

script.Parent.MouseButton1Click:connect(Click) 

and here is the script for the visitors.

function Click(mouse)
script.Parent.Parent.Parent.Parent.Parent.TeamColor = BrickColor.new("Medium stone grey")
end


script.Parent.MouseButton1Down:connect(Click)

I am aware of the waitforchild function but the problem is is that I have no idea where to put it or what to put in the parantheses. Thanks, and help is much appreciated.

lol too many parents to even know what's going on... Here, I rescripted it for you to do what I think you want it to do:

script.Parent.MouseButton1Click:Connect(function()
	if game.Players.LocalPlayer:IsInGroup(3363046)then
		game.Players.LocalPlayer.TeamColor=BrickColor.new'Crimson'
	else
		game.Players.LocalPlayer.TeamColor=BrickColor.new'Medium stone grey'
	end
end)