A root-cause analysis for this issue has been performed and is now available at https://cdn.auth0.com/blog/2021_10_01_Elevated_error_rates_in_EU_environment.pdf
Service has been restored. A root cause analysis (RCA) will be posted here within 14 days. We sincerely apologize for the impact this had on you and your users.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are experiencing an elevated error rate in logins for our EU region. Our Engineers are investigating currently.