This thread is resolved. Here is a description of the problem and solution.
Problem:Your store does not appear to be using a secure connection. We highly recommend serving your entire website over an HTTPS connection to help keep customer data secure.
However the site DOES have an SSL connection
Solution:the message was not from WPML
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.