Hi! I got banned for a week. Transparency and adequacy of that decision might be a different story, but it seems that Voyager does not handle this case well. After that week Voyager still failed to display the inbox. You had to delete all userdata of Voyager, otherwiese it was not possible to either sign in or sign out. After deleting the user data and signing in again, everything works as expected.

So, you might check how Voyager acts when the signed in user gets a temporary ban. At least if you don't consider the malfunction a part of the punishment. ;)