Let's Encrypt fails to issue a certificate for my domains, I upgraded to 3.1 from 18.104.22.168p9, I selected reconfigure services when I upgraded. I did have let's encrypt working on the previous install for one of my domains, but can't seem to get it working now. I've included my debug log from ISPConfig, as well as my log from Let's Encrypt. My domains as well as the www. sub domain both have correct DNS records, the sites display properly when visiting them in the browser. Note that my actual domain has been replaced with domain.com in these logs. ISPConfig Debug: Code: 10.10.2016-03:54 - DEBUG - Calling function 'check_phpini_changes' from plugin 'webserver_plugin' raised by action 'server_plugins_loaded'. 10.10.2016-03:54 - DEBUG - Found 1 changes, starting update process. 10.10.2016-03:54 - DEBUG - Calling function 'ssl' from plugin 'apache2_plugin' raised by event 'web_domain_update'. 10.10.2016-03:54 - DEBUG - Calling function 'update' from plugin 'apache2_plugin' raised by event 'web_domain_update'. 10.10.2016-03:54 - DEBUG - exec: usermod --groups sshusers web1 2>/dev/null 10.10.2016-03:54 - WARNING - Wildcard domains not yet supported by letsencrypt, so changing *.domain.com to domain.com 10.10.2016-03:54 - DEBUG - Create Let's Encrypt SSL Cert for: domain.com 10.10.2016-03:54 - DEBUG - Let's Encrypt SSL Cert domains: domain.com --domains www.domain.com 10.10.2016-03:54 - DEBUG - exec: /usr/local/bin/letsencrypt certonly -n --text --agree-tos --expand --authenticator webroot --server https://acme-v01.api.letsencrypt.org/directory --rsa-key-size 4096 --email [email protected] Let's Encrypt Log: http://pastebin.com/fSq6xqcx I'm a bit stumped as to what could be causing this. Any ideas?