Hi Guy, someone recently reached out to me with this same problem. There is a solution.
DISCLAIMER - Only do this if you know what you're doing. I am not responsible if you damage your computer.
1. Visit your %appdata%
2. Look for the folder Roaming > Renpy > PaprikaTrainer2
3. Delete the 'persistent' file inside this folder
4. Try booting up the game now.