- Plesk 12.5 for Linux
While installing Let's Encrypt extension, the following error is shown:
Error: Failed to install the extension: Executing /opt/psa/admin/plib/modules/letsencrypt/scripts/post-install.php failed: Bootstrapping dependencies for debian squeeze... E: Broken packages
Debian 6 reached the end-of-life status. Apt repository settings got obsolete.
Add the following repository to
deb http://archive.debian.org/debian squeeze main contrib non-free