Ok that makes sense then, you got a glitch that happened to most player (usually after 4-6 hours of gameplay), where the game will start to have difficulty loading certain NPC's faces, resulting in the error message "Failed to load 'whatevercharacter_face.png' RETRY?"
once you see it, your save file is basically gone, because it'll only keep worsening from there.
the only thing you can is just start a new game, as everything that I tried didn't work ( like deleting then redownloading the game but keeping the save file). The problem seems to come from the saving system itself. As you save more, the game will have increasing difficulty in fetching ressources which will block the game alltogether.
PreggoPixel has already been made aware of this and said that they will look into it, but with the lack of info on the origine of the glitch, it will probably take a lot of time.
Sorry for the long reply and lack of solutions, but until somebody figures this bug out, we won't be able to do much about it beside restarting a new game.
On that note, have a nice day.