I suspect, the problem may be with DNS, since my domain used to point to another IP less than a week ago.
Try to flush the DNS cache, or to connect from another device.
Also, try this link: cmtops.dev/posts/rootless-docker-in-multiuser-environment/
Btw. this is from Germany. A geoblock?
I will look into it this week. Busy at work, sorry.
You can write me an email to timofey.chuchkanov@cmtops.dev, so we can continue this troubleshoot later without flooding here.