Ssl error ubuntu 16.04 apache

Server
2

Certbot’s apache and nginx plugins aren’t unsupported - they’re just broken right now because the authentication method they used to depend on is disabled. They’re being updated to support a different authentication method.

Your options are:

  • Try the alternative commands as suggested here (remember to change --installer nginx to --installer apache and service nginx stop/start to service httpd/apache2 stop/start as appropriate)
  • Test the certbot fix that’s in progress here
  • Or if you can afford to wait a while, the fix should be officially released soon.