It's crashing even when I have SOA disabled and it's allowing me to create Kingdoms I couldn't before like Andalusia or Britannia as a Frankish Catholic. Is this normal? So my game is lost?
The patch disabled the title creation - cultural and religious - conditions for the player only by default. It was a good idea to stop any further argument about certain cultures not being able to create empires.
Try disabling all mods - they will almost always need to be updated after every game patch.