When I attempt to upgrade Let’s Encrypt to 1.2.2-16, I the upgrade process takes a little time with the message “Performing software tests on involved systems.” Then, after a few minutes, the system returns the error “Internal Server Error.”
I tried restarting the server before attempting the upgrade. The results are the same after the reboot.
I tried the upgrade on 3 other servers all with the same versions of software. The results are the same.
I have NOT tried uninstalling Let’s Encrypt and reinstalling since I was concerned that I would impact the web access to the system.
In the meantime, there are errors reported in the certificate.
I could not get LetsEncrypt to update via the UCS web interface.
Instead, I logged into the shell as root and
ran univention-app update
ran univention-app upgrade letsencrypt
once complete, I exited the shell
went back into the UCS interface, and, checked the Lets Encrypt app to confirm the upgrade.
As a side note, I had to perform this on a total of 4 servers. None of them would properly upgrade this app via the ‘standard’ software upgrade process through the UCS website.