The reason a lot of logins are failing is that Aurora Store no longer support Anonymous logins in version 3 (i.e. the version in Apps, and the one we have been using until v4.0.2 was released this week.) V3 only supports logging in with a Google account
For Anonymous logins, you need to upgrade to v4. It’s in F-Droid, but I don’t now whether Apps users will see the upgrade. For more details see this post
