Account appears to have been locked by Keybase staff

Hi, my keybase account @bitcoinmandem has suddenly been inaccessible for around 10 days now. I've tried logging in on all of my devices and using my paper key as well but every attempt to log back in has failed. I have been using this application a great deal over the past couple years, and if this is not resolved I will be losing many extremely important conversations and contacts. Please fix this issue, or at least let me know why this has happened.

No files, tests, or entry points are named. Start by reviewing the account-access and paper-key login paths, then reproduce the reported failure across the login methods described; done means the cause of the lock or failed login is identified and the account-access behavior is addressed.

Written by the indexing model from the issue text.