Funcom is sunsetting LEGO Minifigures Online in September
"It is with a heavy heart that we announce that LEGO Minifigures Online will be closing on September 30th, 2016. We know that many of you are still enjoying your adventures in the game, and this has been a difficult decision for us to make but unfortunately, the time has come to retire LEGO Minifigures Online. Starting June 6th, 2016, new players will be unable to join the game and the in-game chat will be disabled. Existing players will still be able to play up until September 30th, 2016."
While Funcom doesn't explicitly give a reason for the sunset, in April the studio released an annual report that spelled doom for the game: "As of the time of this annual report, [Funcom] does not find it likely that any of the game metrics will improve, and has adjusted its investment in the game accordingly. The license agreement with LEGO for the LEGO Minifigures Online game ends October 2016."
Our condolences to all gamers and developers affected.