Hello! I've never heard of this game nor seen its content, so it will be a fresh dive. However, where can I find previous versions of joiplay to download?
Copypaste time again
You can either downgrade to version 1.01.400 and disable auto-update in the playstore
https://www.patreon.com/posts/joiplay-1-01-400-51867946?l=en
Or you can enable beta builds in said playstore and use 1.01.500
Either works
Make sure you have the RenPy plugin too
If you have further problems, try the JoiPlay Discord