The certificate on the domain uuki.live have expired. The support staff for uuki is not responding.
Please see screenshot of the certificate viewer which identifies Let's Encrypt as the issuer.
Is it feasible to determine why the certificate expired?
From this, I infer that you are not part of the support or other staff for this site. So in that case, no, there is no means for you to determine why the certificate expired--that would be the responsibility of the site operators.
Thanks for the response. I'll try again with their support staff.
Because LE certificates are valid for 90 days and it was issued more than 90 days ago.
