Erroneous Blocking

when I log onto the BBC news web site I get the following popup message:-
Avast Web Shield has blocked access to this site because the following certificate has been revoked:
https://feeds.bbci.co.uk

Since the web site opens and loads, the site has not obviously been blocked. Why am I getting this erroneous pop up message and how can I stop it happening?

Contact avast > https://www.avast.com/report-a-url.php

It does seem to be a false positive:
https://www.ssllabs.com/ssltest/analyze.html?d=feeds.bbci.co.uk

It can be that there is a link on that site that links to a site/server where the certificate is revoked.

I can directly access your feeds.bbci.co.uk link, but it comes up with a 404 error and no avast alert.

If I go to the http://www.bbc.co.uk/news I have no alerts (possibly no link there for the feeds), but I’m not logging in as I haven’t subscribed to that function.

The problem is with GlobalSign.

https://www.globalsign.com/en/customer-revocation-error/