I was just looking in the Webmaster Tools and realized that the URL they are flagging is HTTPS. The I checked your SSL site and it looks like it is not even setup. The certificate is self-signed and supposed to be for localhost only, and the page says “To change this page, upload a new index.html to your private_html folder”.
I think that if you are not using SSL then this issue could be resolved simply by turning off SSL support for this site. If you can do that and then request a review then you should be all clear.
Please let me know how that goes, and mark this topic “resolved” if that works for you.