I've never seen or encountered this problem before so this is completely new.
My only guess would be a missing text font file in the 'fonts' folder?
Do you have any of these in your game folder under fonts?
If you're missing some files/ or you already have them, then you may have to download the game again as I'm not entirely sure what's causing the error.
Just make sure to move your save folder to another place when downloading so you don't lose your progress.