Most reported PlayStation 4 issues are software related, some PlayStation 4 users have been reporting two new PlayStation 4 errors on PlayStation European Blog. According to the reports, an error window pops up every time the users try to check the PlayStation friends list or access the Playroom.
The second reported software related PlayStation 4 error is
CE-34878,
which occurs when users try to access the PlayStation Playroom.
SAUER_30-06 reported the error saying, “Yesterday I called Sony support
about my PS4 that constantly gave me the 34878 error, despite total
rebuilding the system, reinstalling certificates and reinstalling games.
Sony support told me to get it replaced at the store I got it from, so I
did. Got home and plugged it in and everything worked fine. I even
played an whole hour of Battlefield 4 for the first time!

If your console crashes constantly every 10 minutes, call support or
your store. You´ll get a new one. The reason I never found an answer was
because the problem is not very common.”
Many troubleshooting tips have been posted by other players who have
viewed the threads created by the users who are suffering with these
PlayStation 4 software errors. Some methods are also reported to be
working, so do not forget to check the threads (1, 2, and 3) regarding the PlayStation 4 software errors on PlayStation EU Blog.