It's triggering the regular cloudflare error when trying to access their dashboard.

Error 522: If you're the owner of this website: Contact your hosting provider letting them know your web server is not completing requests. An Error 522 means that the request was able to connect to your web server, but that the request didn't finish. The most likely cause is that something on your server is hogging resources.

I can't wait to see the postmortem, I wonder if it's a DDOS, network/hardware issue or a deployment error