Why can't I go through Google registration after the application is posted on Google play?

Question

android studio

I wrote an application where you need to go through Google registration at the entrance, everything works from Android Studio. Buildil .apk checked on different smartphones, too, everything worked correctly, logged in data was added to Firebase. I made a .aab bandal and uploaded it to google play, from there for some reason the registration stopped working.
link to source code
https://github.com/open032/MemoriesHub/blob/master...
link to app in google play
https://play.google.com/store/apps/details?id=lex... .