Game Freezing

Hi, I am continually having issues today with the game just freezing. Either upon loading into a character where the grinding gear logo freezes, or if I am able to access the gameplay, after a minute or two the screen freezes totally and does not come back. I can still hear music and sound going on though. Also wanted to add that this is not just one or two freezes, but is making the game totally unplayable. Thanks!