Sign-In Problem with Sony Reader app on Samsung Tablet

Was using the Sony Reader app on a Samsung tablet, then signed out.  Because of doing that could not access books anymore.

Attempted to sign in and it didn't recognize my sign-in (Sony Reader Store continues to).

Got an Adobe Sign-in screen and it doesn't recognize my sign-in so used their link to reset my password, which I did.

Reader app on tablet doesn't recognize new or old password.  What do I have to do to be able to read books again?