Game Freezes and quits by itself

I am a PS3 user and I have to use the /blacklist function a lot to stop the flodding of the gil sellers. About 1/4 of the time i use this function my game freezes.

Also if there is a lot going on on the screen if i should die and want to return to my HP or teleport and even when I change areas sometimes the game just shuts itself off as if I had used the PS button and said quit game. This thing where the game decides that it wants to just quit happens very often since this mornings "update/fix".