After the successful installation of the update (Map Bug fixing) the game started normally.  After a while (about 50 minutes playing time) I paused for personal matters and when I was back in the room, I noticed that my PS4 turned off - without a blue screen, without an error message .... Just went out.  After the 3rd try, my PS4 started up normally, when I wanted to go back to my world there was a "defective file" - the entire world was deleted.  There was no alternative other than deletion.  Since I have already invested over 100 hours of construction there and I put a lot of emotional value into it, I expect my map to be restored!  After all, I invested money to play it!  Affects the world: Creepy property, size 90.0MB (flat world), last saved 10.07.  Around 1:30 a.m. or 2 a.m. German time.