Invoke-IcingaCheckCPU: Icinga Plugin execution error was thrown during API request: Attempted to divide by zero.

This UNKNOWN-event appeared after the last reboot of the Win-2016-Server, I've never seen this anywhere else in our environment.
The output of the plugin itself looks good:

PS C:\> Invoke-IcingaCheckCPU -Core Total -Critical 99 -Limit100Percent -OverallOnly -Verbosity 2
[OK] CPU Load
\_ [OK] Overall Load: 10.03480%
\_ [INFO] Socket #0
   \_ [INFO] Core Total: 7.03596%
\_ [INFO] Socket #1
   \_ [INFO] Core Total: 13.03364%
| totalload::ifw_cpu::load=10.03480%;;99;0;100 0_total::ifw_cpu::load=7.03596%;;;0;100 1_total::ifw_cpu::load=13.03364%;
;;0;100
0

It is the only icinga-service on this server which shows this behaviour.
I already refreshed/rebuilt the cache, restarted IfW etc. - nothing changed.

Component    Version
---          ---
agent        2.16.5
framework    1.15.0
plugins      1.15.0
service      1.3.0

no JEA enabled

Start by reproducing the request using Invoke-IcingaCheckCPU with the reported arguments on the affected Windows Server environment, then inspect that entry point for the divide-by-zero path. Compare the successful plugin output with the failing API request and determine what condition triggers the UNKNOWN event. Done means the request no longer throws the error and the behavior is covered by an appropriate regression check.