I use let’s encrypt on a virtualmin server and successfully set up a lot of domains with certificates.
suddenly updating a certificate fails with this message on multiple servers:
Requesting a certificate for domain.com, www.domain.com from Let's Encrypt .. .. request failed : Expected certificate file /etc/letsencrypt/keys/cert.pem was not found
is this a file which should exist on the server?
this is ubuntu 14.04.5 letsencypt-auto is on 0.9.0