There are limits to how many cash tournaments (of the same tournament type) that a player may have open at a given time.
The maximum number of open tournaments allowed per tournament type will vary per game, tournament type or account.
When a player has reached the maximum amount of open tournaments, they will not be able to enter additional cash tournaments (of the same tournament type) until some of the open tournaments close.
While a player waits for other tournaments to close, the player may attempt to participate in other tournament types or may play another WorldWinner game title as they choose.