Note: Starting with SafeConsole 5.2.1, new certificates will be generated with a correct Subject Alternative Name and you should not receive this error on new installs.

Starting with version 58+ of Chrome, certificates that do not have a valid Subject Alternative Name will show an error like the one below.

To continue using SafeConsole, click ADVANCED, then Proceed.... 

If you would like to view the certificate before proceeding, press F12 to open the development tools, then click View Certificate under the Security tab. 

Another option is to use a different supported web-browser, such as Firefox, Safari, IE11, or Edge.