Horde -- Game Declared a Draw -- Moves Still Possible

Here is the URL of a game I played: lichess.org/ik5Fr4G3/black
The game ended with th declaration of a draw after White played h4, but Black can play the Queen to h8 and easily capture the remaining White pawns. Why is the game ended and why is it a draw?

Maverick, this is a Horde game, not a regular chess game.

Thanks for the report. This is a bug in the calculation for draw by insufficient material. Will look into a fix.