how to see if the player has the leave menu open?

---------------------------------getting values from data store----------------------------------

local DSS = game:GetService("DataStoreService")
local value_to_add = script.value_to_add.Value
local loading_type_store = game:GetService("DataStoreService"):GetDataStore("loading_type")

function load_type(player)
	------ loading screen
	wait(1)
	local player_gui = player.PlayerGui
	local player_id = player.UserId
	local character = player.Character
	local wf_copy = character.what_failed:Clone()
	local loading_type_value = character.load_type_selected
	local loading_type
	local success, err = pcall(function()
		loading_type = loading_type_store:GetAsync(player_id)
	end)
	if success then
		loading_type_value.Parent = character.loading_screen
		if loading_type == nil then
			warn("could not retrieve data")
			character.what_failed.Value = "getting load screen number"
			wf_copy.Parent = player_gui
		else
			character.loading_screen.loading_type_value.Value = loading_type
		end
		character.loading_screen.Parent = player_gui
		print("success")
	else
		warn("could not retrieve data")
		character.what_failed.Value = "getting load screen number"
		wf_copy.Parent = player_gui
	end
end

---------------------------------setting values to data store------------------------------------

function leaving(player)
	------ loading screen
	local player_gui = player.PlayerGui
	local player_id = player.UserId
	local bricks_selected_value = player_gui.loading_screen.logo.loading_types.bricks.selected.value
	local roblox_selected_value = player_gui.loading_screen.logo.loading_types.roblox.selected.value
	local square_wheels_selected_value = player_gui.loading_screen.logo.loading_types.square_wheels.selected.value
	local studs_selected_value = player_gui.loading_screen.logo.loading_types.studs.selected.value
	if bricks_selected_value == "true" then
		loading_type_store:SetAsync(player_id, "bricks")
	end
	if roblox_selected_value == "true" then
		loading_type_store:SetAsync(player_id, "roblox")
	end
	if square_wheels_selected_value == "true" then
		loading_type_store:SetAsync(player_id, "square_wheels")
	end
	if studs_selected_value == "true" then
		loading_type_store:SetAsync(player_id, "studs")
	end
	
end

game.Players.PlayerAdded:Connect(load_type)
game.Players.PlayerRemoving:Connect(leaving)

i am trying to make it so when the player leaves it will save what loading icon the player saved but roblox studio is giving me a maaaddddd look

saying that player gui doesn't exist

trying to fool me

help me show roblox studio who is boss