This morning I received this error message when I tried to connect to the Shaw webmail server. My computer date and clock are correctly set. Similar message from FireFox, Chrome and Edge

Warning: Potential Security Risk Ahead
Firefox detected an issue and did not continue to webmail.shaw.ca. The website is either misconfigured or your computer clock is set to the wrong time.
It’s likely the website’s certificate is expired, which prevents Firefox from connecting securely. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.
What can you do about it?
The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

Does anyone on the Forum know how to notify the website administrator? I couldn't find a way on the MyShaw website