In this game: "lichess.org/Sgw4Q8bUkYFP"
I ran out of time, though after my last move, I only saw my opponents time ticking til the end. So it seemed like he just wants to run time out. After I refreshed the page after my opponent got 0:00 on his clock, the page refreshed with me losing on time. This lead to unnecessary chat messages as the website did not show whats really happening.
That usually happens after the server restarting, so I can recommend when you see the orange pop up that says Lichess will restart, don¨'t play any games.