Connection not protected?

[mhawg]

Why am I getting this warning from my Kaspersky?
Connection not protected
The security of your connection is reduced. Criminals can attempt to steal your data from the website. You are advised to leave this website.

URL:

www.bladeforums.com

Reason:

A signature for this certificate or one of certificates in the certificate chain is not found. View certificate

I understand the risks and wish to continue

 

[KingMC]

Because something on your end is screwed up? I just went through every possible attempt at getting to bladeforums without the https prefix and failed, so whatever may be spooking for virus protector it's not universal.

 

[mhawg]

It says it has a, "nonvalid digital signature." When I view the certificate it says it is good until May 2018.

 

[Spark]

Well that's weird, our cert should be good for years.