Acronis error on a Plesk server: cannot open Packages database in /var/lib/Acronis/.rpmdb

Symptoms

• Unable to recover backup with Acronis extension.

• The following errors can be seen on a system log:

  2024-05-15 20:34:47
  INFO
  active-protection.sh [3466033]
  System daemons [3]
  error: cannot open Packages database in /var/lib/Acronis/.rpmdb
  2024-05-15 20:34:47
  INFO
  active-protection.sh [3466022]
  System Daemons [3]
  error: cannot open Packages database in /nonexistent/.rpmdb

• Some Acronis actions may not work as expected.

Cause

This was identified as a bug by Acronis with ID KERNEL-16045

Resolution

This was fixed in Acronis version 24.05.

Use the following Steps to update Acronis agent to the latest version:

1. Log into Plesk.

2. Go to Acronis Backup > Go to backup console. Enter credentials from the Acronis Backup console if required.

3. In the Acronis Backup console go to Settings > Agents.

4. In the list of machines select the one with outdated agent versions. They will be marked with an orange exclamation mark.

   Note: The machines must be online.

5. Click Update agent.