Yesterday we told that some users of PlayStation 4 is experiencing system problems with corrupt items, mistakes and even facility "crashes" that we return to the console menu while playing.
This error is known as CE-34878-0, and for now, it seems that only two solutions. The first is to have the console and the current game and restart the machine after both updates, something you probably have already done many users.
The other option is to "initialize" the console, or in other words, formatting. To do this we must go to Options, Initialize, Initialize PS4. Obviously, all the content you have on your hard drive becomes inaccessible, although in theory we can get back to playing normally.