my world is messed up

Good afternoon I bought the version of minecraft for windows 10 and it happens to me that I create a world I make my house (the normal thing) but when I leave because I have to do some personal matters and I return to play and when I enter my house is destroyed as if something or someone destroyed it, it should be clarified that if I save the progress, I would like to know why that happens.

Is it a game error?