Can't get into free stardog cloud

Hi,
I was working on a free instance of stardog cloud yesterday and it has disappeared today. The endpoint is: https://sd-c1b83a13.stardog.cloud:5820/

Is there a problem?

Best regards,
Marcus

Sorry about this, I got the endpoint wrong the one that is no longer reachable is: https://sd-17597c29.stardog.cloud:5820/auv

Graphs at this endpoint were being worked on yesterday and it is not longer accessible. If I issue the following query (from CLI):
stardog data add --named-graph http://example.surroundaustralia.com/glossary/jmap_abbr/ --passwd <password> --username <username> https://sd-17597c29.stardog.cloud:5820/auv jmap_abbr.ttl

I get the following response:

No such host is known (sd-17597c29.stardog.cloud)

Can't log into this endpoint via browser, just get: This site can’t be reached - DNS_PROBE_FINISHED_NXDOMAIN

I wonder if there it can be restored and if not can it be deleted so another one can be created?

Best regards,
Marcus