Your connection is not private
Attackers might be trying to steal your information from www.example.com (for example, passwords, messages or credit cards). NET::ERR_CERT_COMMON_NAME_INVALID
The most likely cause for this is that you are trying to access the website using https:// rather than http://
Re-entering the URL in the address bar using http:// should solve the problem, but beware that this will not be an encrypted connection