Had 2 x 2 EUR Hexapro games ongoing, not big prizes, but still... And suddenly the window froze, I couldn't do anything. Relaunched the browser. After 2-3 minutes, it came back, only one table remaining and it i had 100 chips left. It's not a big deal now, but in the future I would be less eager to start a new game if I know something like this might happen again...