I hit the special level behind Egypt, picked up a weapon, and then the game popped up a pop-up window with incorrect text. After 5 seconds, all screens turned black and gray, and I couldn't see anything. I died. After re-entering the game, there is no sound anymore. Reinstalling the game, restarting the computer, updating the sound card driver can not restore the sound of the game, the game setting does not disable the sound, and the computer does not disable the sound, what should I do?