After I enter the club, rooms and tables are empty.

Some suggestions that may help if you see 0 rooms/0 tables after entering the bridge club : 

Enter the club, you see the green screen with 0 rooms and 0 tables etc - press [EXIT] - see example image
and re-enter the club 

If the above does not help:

• - reboot/restart your pc/laptop/tablet

If that does not help:

• - restart the hub/router (turn off/unplug, wait 5-10 minutes and turn back on.)