My main world has dissapeared after the newest update

410/5000
 
 
My main world has disappeared, nobody else has access to my account, only me. I stopped playing my game for about 4 days and upon entering it appeared to me that it had been updated to version 1.14.60 on my Xbox One. I wanted to enter my main world but it was gone. I would like to be provided with help to get it back as I have invested quite a bit of time in it, thanks in advance. I really need it.