- Plesk for Linux
The extension Amazon S3 Backup is not available in the Extensions Catalog.
When trying to install it manually, the installation fails with the error:
PLESK_ERROR: Error: Unable to install the extension:
Plesk 17.8.9 is the earliest version supported by the package.
The Amazon S3 Backup extension requires Plesk version 17.8.
Upgrade Plesk to the version Onyx 17.8.