How do I make it so that the former frame closes when I click a button to open a new frame?

Current Script:

function onClick()
	if (script.Parent.Parent.Parent.BuildFrame.Visible)then

		script.Parent.Parent.Parent.BuildFrame.Visible = false

	else

		script.Parent.Parent.Parent.BuildFrame.Visible = true
	end
end

script.Parent.MouseButton1Down:Connect(onClick)

https://roblox.com/games/7112939740/PurchaseHub