Small repairs in a family room for 4 people

There were two bugs in the 4-player table: When the game table opened, the server did not remove players from the table. This was because the user, when closing the game table window, could not return to the game table before having to refresh. When the game ended, it was not possible to sit at the table again (the table creator did not see the confirmation window). Again, only a refresh helped. Now both bugs should be fixed. Let us know if any other bugs appear!