Can't access character from player on PlayerRemoving event?

There seems to be an issue upon accessing character from the PlayerRemoving event. The weird thing is that I can get to character from a ClickDetector.MouseClick call. Any idea as to why this is acting like this?

Here's my code:

game.Players.PlayerRemoving:Connect(function(player)
    print(player.Backpack)
    for i,v in pairs(player.Character:GetChildren()) do
        if v.ClassName == "Tool" and v:FindFirstChild("RoomNumber") ~= nil then
            v.Parent = player.Backpack
        end
    end
    for i1,v1 in pairs(player.Backpack:GetChildren()) do
        if v1.ClassName == "Tool" and v1:FindFirstChild("RoomNumber") ~= nil then
            for i2,v2 in pairs(script.Parent.RoomScreen.Rooms:GetChildren()) do
                if v2.Name == v1.RoomNumber.Value then
                    v2.BackgroundColor3 = Color3.fromRGB(0, 255, 0)
                    return
                end
            end
        end
    end
end)

As you can see, this is a hotel room script and I want this to work because when a player leaves without checking out, I want to make the room available again. Any ideas as to why accessing character doesn't work?

Thanks for your help!