When i go to load the game i can see that it is there says last log in is 2018-11-04 which is a month ago and that it is 79.4MB.this machine is the only machine i have played minecraft on and only play when my son comes over on weekends when he wants to play.everything was always saved externally on a drive in case i ever had to send machine away for repairs my games and saves would not be affected in which that never happened. jus curious to why this happened and how to go about recovering the world