Origin DNS error with cloudflare

Hello. We got an error in our monitoring system regarding absence of ‘#username’ on our origin website:
We got below message during manual check:

After a few minutes the issue was disappeared.
Can somebody shed a light what could be the root cause?
Thanks in advance.

Hi @sergii.lypnytskyi,

Sorry about that, this was the incident mentioned here: https://status.auth0.com/incidents/jz03p79yfq60

Our engineering team aim to provide a postmortem / root cause analysis within 14 days of an incident and they will post it to that page when ready.