I am running a cronjob on a Centos 6.8 with the apache plugin:
/usr/local/sbin/le-renew domain.com >> /var/log/le-renew.log
I got this result today:
/root/.local/share/letsencrypt/lib/python2.6/site-packages/cryptography/init.py:26: DeprecationWarning: Python 2.6 is no longer supported by the Python core team, please upgrade your Python. A future version of cryptography will drop support for Python 2.6
The apache plugin is not working; there may be problems with your existing configuration.
The error was: NoInstallationError()
/usr/local/sbin/le-renew: line 58: /usr/bin/systemctl: No such file or directory
While I am aware that 2.6 is deprecated, the last 3 lines sound a bit more worrying to me. Anything I should be doing about this?
In the end, the renewal process there did not finish, but when I ran it manually, it did, with the same error message.