Lost on time with plenty of time.

It is not the first time that it happens to me that I am playing a game and I cannot input any move and my time keeps running. There is no draw button but just abort button that does not work when pressed. Time runs out and nothing happens but when I check my games I see a lovely defeat.

This is the game: http://en.lichess.org/MtaF9RoyVHkQ
where you can see something I did not saw while playing: black's last move.

It's no big deal (just a few loses here and there) but I'm reporting it in case it is helpful...

Most probably a connectivity issue on your side. When it happens, reload the page.

It used to happen to me all of the time.
It as thibault said.

Thanks guys; next time I'll try reloading the page. (I did not do it cause I thought that it would forfeit the game).