Thank you for your patience, Skull666!
We've just released a fix for the crash with version 4.11. You can check out the patch notes here: https://elston-studios.itch.io/firstborn/devlog/133565/guile-glory-firstborn-411...
Be sure to download the latest version of Guile & Glory, and the bug should be gone (don't worry, your save file will carry over!)
If you run into any other issues, please don't hesitate to let us know!