I been playing PSO2:NG for about a good while now. But for some reasons I keep getting these screen black out in the middle of nowhere, whether that be traversing maps, fighting monster, or even during main mission dungeon. The weird thing is that during these black out moments. I can still hear my character fighting whenever I click the attack button or the sounds of the menu screen being opened up when I pressed Esc. But after a few seconds I would get the message saying PSO2:NG exe. has stopped working.

The game works perfectly fine when there isn't a lot of player. (I tested this at midnight where the sever population were normal and not crowded) So is there anyway to fix this this issue of mine?