Aw so sorry to hear that!!
Web games stores the game progression with your cookies, which are often cleaned up when not used in a while (or sometimes just randomly).
Very sorry it happened to you :(
You can download the game to make sure it never deletes your progression
same person, diff account; that's the account I use on my school PC </3 I have it downloaded on my home pc but I'm not at home all the time, unfortunately.
