This error does not indicate a problem with the SSL certificate.
What this error means is that some elements on the page are being pulled from a non secure URL. For example the page code might include an image or code that pulls from a non-secure URL. To resolve this issue make sure that the page code does not pull data directly from a non-secure URL.
To identify non-secure elements continue to load the page by clicking “Yes”.
Then view the source code of the page and search for the text src=”http://
This will then highlight elements on your page being loaded from a non-secure URL.