My world was corrupted even after I save the game

My light suddenly turned off, but the game still running, and I realized that the energy probably would not work completely, than I save the game quickly to not lose any progress, and I did it, I came back to the menu, and the energy went out, when it came back I try to play my world but it was corrupted and just appeared an menssage saying to came back or to delete the world. I just wanted an option to use the seed of the world and create a new one with that seed