Linking Subdomain to a Worker

I am trying to link a subdomain - to a worker.

CNAME pg Proxied
AAAA 100:: Proxied

The Routing is as below to the worker >> zingalifywebsite zingalifywebsite [production]

This has been working for other domains but don’t know why I can’t this running. Can someone point out my mistake?
Thanks !

To add to the above post, it is returning 522 error.

I’m not seeing a 522, but I can’t get a secure connection. It’s probably this: