Room is deleted if Player stays on title screen

[tschmid85]

Describe the bug
When a Player opens a new room, the room is initially empty and will be deleted after 60 seconds. Not until the player chooses am Avatar he will join the room and prevent the deletion.

If that happens, the client will start without an exception, but the server has no gameRoom with the given ID, so it will not update anything and the client does not work...

There should be at least a message that tells the player that he waited to long.
Or better, when the player chooses the Avatar and the room was closed, it should be reopened...