In this case, the address listed in the certificate does not match the address of the website your browser tried to go to.
This is what google is telling me. I cut and pasted part of the response below:
One possible reason for this is that your communications are being intercepted by an attacker who is presenting a certificate for a different website, which would cause a mismatch. Another possible reason is that the server is set up to return the same certificate for multiple websites, including the one you are attempting to visit, even though that certificate is not valid for all of those websites. Google Chrome can say for sure that you reached *.worldsecuresystems.com, but cannot verify that that is the same site aswww.alechadesigns.com which you intended to reach. If you proceed, Chrome will not check for any further name mismatches.
I just add comment on correctly using HTTPS with BC.
You should always use the worldsecuresystems.com url for https and not just add https to your domain. Otherwise you will get certificate errors, especially in Chrome, as the certificate is only issued from worldsecuresystems.com domain. Not your website.
Just a side note.
Europe, Middle East and Africa