Over 100 Clients but 4 Clients won't work correctly


I installed agents on over 100 servers.
But 4 Servers making problems. And everything i try didn’t work…
Can anyone give me a hint?


1x Server 2019 (Microsoft Windows [Version 10.0.17763.5696])
2x Windows 10 Pro (Microsoft Windows [Version 10.0.19045.4291])
are showing
Icinga Invalid Configuration Error was thrown: PluginNotInstalled: Invoke-IcingaCheckUsedPartitionSpace

I have tried these and much more…
Add-IcingaRepository -Name ‘Icinga Stable’ -RemotePath ‘https://packages.icinga.com/IcingaForWindows/stable/ifw.repo.json’ -Force;
Update-Icinga -Name ‘plugins’;


1x Server 2008R2 (Microsoft Windows [Version 6.1.7601])
It’s an old ERP-System only for showing old datas
is showing
The Icinga PowerShell Framework is either not installed on the system or not configured properly. Please check Introduction - Icinga for Windows for further details

Icinga Windows Agent 2.14.2
Powershell Framework 1.12.0