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