So you have the Secure website with SSL but you have some redirects which are posting data on insecure URL. Then you must change them to secure URL. This error will appear if you are sending data from a secure URL to a Insecure URL.
The information that you’re about to submit is not secure
Because the site is using a connection that’s not completely secure, your information will be visible to others.So you must also check your Secure your Redirect URLs.
