This question already has an answer here:
We run a website over HTTPS with a wildcard certificate from Positive SSL.
Today, when I opened Google Chrome (v. 42.0.2311.90 m) and navigated to the site, I noticed a red cross through the
https part of the URL in the address bar. When I click on it, I get this:
Can anyone explain what is going on here? Should I get a new certificate from another issuer?