veeam-status: fails after Veeam update from v12 to v13

[kunsjef]

This issue respects the following points:

• This is a bug, not a question or a setup/configuration issue.
• This issue is not already reported on Github (I've searched it).
• I use the latest release of the Monitoring Plugins (https://github.com/Linuxfabrik/monitoring-plugins/releases).
• I agree to follow Monitoring Plugins's Code of Conduct.

Which variant of the Monitoring Plugins do you use?

• .rpm/.deb package from repo.linuxfabrik.ch
• Compiled for Windows from download.linuxfabrik.ch
• Source Code from GitHub

Bug description

After upgrading our Veeam installation from v12 to v13, the veeam-status plugin stopped working. The error is as follows:

Traceback (most recent call last):
  File "/usr/lib64/nagios/plugins/veeam-status", line 446, in 'module'
    main()
  File "/usr/lib64/nagios/plugins/veeam-status", line 288, in main
    table_values.append({'key': 'BackedUpVms', 'value': result['vms_overview']['BackedUpVms']})
                                                        ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
KeyError: 'BackedUpVms'

Steps to reproduce - Plugin call

/usr/lib64/nagios/plugins/veeam-status --url https://1.1.1.1:9398 --username user --password pass --failed-job-runs 1

Steps to reproduce - Data

Traceback (most recent call last):
  File "/usr/lib64/nagios/plugins/veeam-status", line 446, in 'module'
    main()
  File "/usr/lib64/nagios/plugins/veeam-status", line 288, in main
    table_values.append({'key': 'BackedUpVms', 'value': result['vms_overview']['BackedUpVms']})
                                                        ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
KeyError: 'BackedUpVms'

Environment

The plugin is run from a Debian 12.12 server:

# uname -a
Linux server 6.1.0-41-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.158-1 (2025-11-09) x86_64 GNU/Linux

Plugin Version

veeam-status: v2025021501 by Linuxfabrik GmbH, Zurich/Switzerland

Python version

Python 3.11.2

List of Python modules

No response

Additional Information

No response