[CLIENT] Ranked game abruptly ended after 5 minutes

I just started a ranked game, and after ~5 minutes I was disconnected ("attempting to reconnect"). My internet was fine at that time, so I decided to exit the game and try to re-enter. When I did that, the client was waiting for stats (as if the game has ended), but I skipped waiting (because it seemed that it wouldn't get there). After that I was able to enter the queue again (meaning the game actually ended).

I saw that there should be a downtime today but it isn't expected for at least a few more hours. Im in EUNE btw.