Web browsing Issue "Checking if the site connection is secure issue"?

I have faced “Checking if the site connection is secure” on my site: https://www.novacustomboxes.com/. How I can fix this issue.

Expert Help Me!


Try the following thread first for reasons why this may be happening:

If this is your own site, you could lower the security level to reduce it, just be sure you read through the docs and understand what that means: