It doesn’t appear your site is setup with an HTTPS URL for secure communication. Even if your site does not collect sensitive customer information, Google is now using HTTPS as a ranking signal.
HTTPS is a secure protocol for sending and receiving data over the internet. HTTPS should be used on any site that collects sensitive customer information such as credit card information. If your site does not collect personal data, switching to https will help improve privacy and overall security. Google is now using https in setting PageRank.