Oh, shoot. I absolutely hate to see this. Let me see if I can figure out where saves are stored on the itch launcher. Worst case scenario, if you want to hop over into the Discord we can work on recreating your save file!!
Okay -- I'm seeing on another post that itch launcher saves might be stored at %appdata%\itch\apps - if that's the case, you can copy your save directly over to %appdata%\_______ Idite Game folder and you should hopefully get it right back up and running?? Let me know if this does not work.