This problem came from the server that SSL certificate installed in wrong way and not authenticated at all. That make the SSL is not trusted and browsers will warn you.
You should to contact your hosting provider to fix this or find someone install it help you.
In the users side, you can easy to pass this error or just disable the warning with some simple steps here: Fix [Link redacted] error.
I had the exact same problem!!!
This fixed it:
open network and sharing center
On the left side- click on:
change advanced sharing settings.
click on home or work.
go through and check “turn off” for the first three questions.
turn on password.
Your computer connection was wide open!!!!