Couldnt find any statement so far regarding a patch...

The PlayStation 4 error CE-34878-0 can usually be fixed without having to re-install the PS4 system software. Here’s what you need to do to fix the error:

• Restart the system and try again. Make sure the latest game patches and PS4 system software has been installed.
• If the error persists, re-install the game (re-download if its a downloadable title), and try again.
• If the error still persists, you’ll have to re-install the PS4 system software. Go to Settings, then to Initialization, and choose Initialize PS4. Be sure to back up your data before doing this.

Tried to inialize, did the data rebuild 10 times, re-installed fallout a couple of times. Game still keeps crashing.

nope doesn't work

K.

Can you plaese try to rebuild your database, and try to start a new game ???

https://support.us.playstation.com/articles/en_US/KC_Article/Safe-Mode-PS4/

(option 5)

Thats what i did today.... But i was lvl 40 with my other char and i dont have enough holiday to play that much again. So i hope i dont encounter another time that bug. But until im back in the position like with my first char it will take some weeks... so it will take a long time to see if just my savegame was busted or my whole game doesnt work.

But tbh right now my motivation to play fallout again is low. Why should i grind again for matching legendarys, a fully upgraded gauss rifle and so on just to hit another bug and beeing forced to start all over again at zero....