This warning is displayed when your ESET product detects that the security certificate for a website is revoked.
ESET cannot resolve the issue because only the owner of a domain can renew their security certificate. You cannot choose to continue to the site using the insecure certificate.
This issue may be caused by the need to replace an expired R3 intermediate certificate. Visit this tool to see if a website is using an expired certificate.
Read more about resolving an expired R3 intermediate certificate.