We run a web server for a free/open source project on a CentOS 7 VM. We have Apache 2.4 installed from Red Hat's Software Collections (SCL). We also installed EFF's Certbot from EPEL to manage HTTPS certificates. This is our first attempt at Let's Encrypt and Certbot.
Certbot for CentOS 7 + Apache instructions are here. We failed at the step below because we use Apache 2.4 from SCL and not the ancient Apache that Red Hat distributes:
sudo certbot --apache
The error is is shown below. We believe Certbot should have used
Obtaining a new certificate Performing the following challenges: http-01 challenge for example.com http-01 challenge for www.example.com Error while running apachectl graceful. Job for httpd.service invalid.
The problem now is, I can't find information on continuing/restarting a request. The failed Certbot request did not tell us what to do after we fixed the problem, and the Certbot docs don't seem to detail the procedure either.
What are our next steps? How do we continue or restart the process?