Read last week's discussion
https://store.steampowered.com/news/app/1373220/view/3122678848537638151
If you are reading this article after the game was updated and you have a save version 0.4.7 (when you trying to continue the game you get an error) then write to [email protected]
The game has been downgraded to the previous playable version 0.4.6
Source: Steam Community (opens in a new tab)