You can find the feedback form button in-game on the bottom right of the mainmenu screen.
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Your save file might've been corrupted. Go to AppData\Local\AtC_BB\Saved\SaveGames, move the file somewhere to back it up, start a newgame, quit, put back your old save file to replace the new one and you should have your original save game back in order. If that doesn't work, you may have to start all over.