This happens if you input an invalid data type (e.g., typing text into a field that requires a number) or if you changed a structural variable the game relies on. Delete the broken file and restore the backup you made in Step 1.
Export, save, or download the modified file from the editor. renpy save editor
Keep in mind that this review is based on my understanding of the tool, and actual users may have different experiences. If you're a Ren'Py developer or player, I'd love to hear your thoughts on the editor! This happens if you input an invalid data type (e