Altogether, there are three different transition options for private leagues that you and your colleagues can choose from. By no later than Sunday, June 30th, the league admins must have set up the desired transition, and all managers need to have made their player selections in their lineups.
If your league admin is inactive or you have some qualms, feel free to contact Football-Stars-Support at any time. After the 31. May no new players will appear on the transfer market.