This message appears when a game has already been launched on the same table - either on another device or in a different browser tab on the same device. 

As the system does not allow a player to be connected to the same table twice, you will need to locate and close the other active game session before continuing.   

To prevent this from happening in the future, please ensure that you always start a new game from the Game Launchpad under the PLAY menu, rather than accessing a previously played game via a bookmark or saved link.