Why won the dice stop rolling?
This is a symptom of a lost connection to the game. If the connection goes dead, the dice will roll “forever”, and the timer will keep counting down. You typically are no longer able to send chat (you can enter chat, but it will not appear.) Eventually, a window will pop up telling you that your connection is dead. From there you need to go back to the room you were in, and then rejoin the table you were at.