Getting the very same error. At first I thought it was due to new drivers (I updated them for Fallout 4), but I tried old version and still crashing. Trying to play in Direct9x mode didn't help either. Will let you know if anything works. In my case, it always crashes during the "Sea of clouds" loading screen. I logged in right after maintenance finished, went to Gold Saucer and Limsa and everything was fine but when I tried to teleport to Sea of Clouds to get the quest for Pharos HM, couldn't play anymore.