Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: confowiz.com
I ran this command: sudo add-apt-repository ppa:certbot/certbot
It produced this output: sudo add-apt-repository ppa:certbot/certbot
This is the PPA for packages prepared by Debian Let’s Encrypt Team and backported for Ubuntu(s).
More info: https://launchpad.net/~certbot/+archive/ubuntu/certbot
Press [ENTER] to continue or Ctrl-c to cancel adding it.
gpg: unknown option ‘show-only’
gpg: invalid import options
Got ‘0’ fingerprints, expected only one
Failed to add key.
My web server is (include version): Apache 2.4.29 Ubuntu
The operating system my web server runs on is (include version): Ubuntu 18.04
My hosting provider, if applicable, is: Google cloud
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):