Error 34878 5 times in a row now. I've restarted the PS4. I've made sure that I'm playing the most recent version (v1.16.) It's the digital version, so no, my disc is not dirty. The PS4 system software is up to date. I've made sure that boost mode is turned off, as this can make a few games act wonky. I've tried starting with and without the DLC, in case it's causing a problem. Pretty frustrating. Still haven't played 1 second of the game. Any other ideas on what to try?