GUI and camera interaction problems?

I wrote this script so when I the user presses a button the camera will go back to custom and the GUI goes away, but when I put them together the camera does not go to scriptable.

player = script.Parent.Parent
c = game.Workspace.Camera

local open = true
local buttonPressed =  false

local button = script.Parent.Parent.StarterGui.ScreenGui.Frame.closeScreen
	
function changeButtonPressed ()
	
	buttonPressed = true
	
end

while open == true do
button.MouseButton1Click:connect(changeButtonPressed)

if buttonPressed == false then
	c.CameraType = "Scriptable"
	pos = Vector3.new(-832.984, 12.576, -680.927)
	targ = Vector3.new(-562.654, 1.741, -789.89)
	c.CoordinateFrame = CFrame.new(pos,targ)
	wait(1)
end
 if buttonPressed == true then
	c.CameraType = "Custom"
	open = false
	end
end