In short: I enter the novel, I press the English button and then without pressing anything it takes me out of nowhere. Also, when I wanted to install the APK, I got a message that it was for an older version of android
I rebuilt the game with the latest RenPy version, could you check if it solved your problem?
Stardust Kids - 1.2.1 - android
It'll be installed as a separate app with a newer version.
Edit: Updated the link