I've installed the Let's Encrypt extension in Plesk, which automatically renews the certificates served to Apache. But today I've received the following email which reminds me to renew my certificate:
From: Let's Encrypt Expiry Bot Date: 2017-06-27 0:13 GMT+02:00 Subject: Let's Encrypt certificate expiration notice for domain "***.ch" To: info@***.ch
Hello,
Your certificate (or certificates) for the names listed below will expire in 19 days (on 16 Jul 17 18:40 +0000). Please make sure to renew your certificate before then, or visitors to your website will encounter errors.
[...}
When I try to renew the certificate in the extension settings, I get the following error message:
Error: Let's Encrypt SSL certificate installation failed: Challenge marked as invalid.
Details: Fetching http://***.be/.well-known/acme-challenge/***: Error getting validation data
That's when the webserver stopped working and starting it again doesn't work:
# service apache2 start
* Starting web server apache2
Syntax error on line 54 of /etc/apache2/plesk.conf.d/vhosts/****.ch.conf:
SSLCertificateFile: file '/opt/psa/var/certificates/cert-***' does not exist or is empty
Action 'start' failed.
The Apache error log may have more information.
The configured certificate file is missing, what happened and how can I fix this?
