I have two domains which need to be renewed but it's failing. When I run the --dry-run command I am getting the following error message.
Attempting to renew cert (mailorderhst.com) from /etc/letsencrypt/renewal/mailorderhst.com.conf produced an unexpected error: str returned non-string (type Error). Skipping.
It has successfully auto renew since last year and I didn't update any packages to my knowledge.
It produced this output:
Attempting to renew cert (mailorderhst.com) from /etc/letsencrypt/renewal/mailorderhst.com.conf produced an unexpected error: str returned non-string (type Error). Skipping.
My web server is (include version): Apache/2.4.6 (CentOS)
The operating system my web server runs on is (include version): CentOS Linux release 7.2.1511 (Core)
My hosting provider, if applicable, is: NA, self hosted
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): no
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 1.3.0