unknown software error when shutting down PC

[nicoschuler]

EXPECTED BEHAVIOUR

The PC should shut down without an error message

ACTUAL BEHAVIOUR

When I shut down the computer, I get an unknown software error (see attachment)

STEPS TO REPRODUCE THE BEHAVIOUR

Sometimes this message comes up during a normal shutdown

LOG FILE

Here is the Log File: Toastify.log2022-07-21
And here the picture of the error message (it's german):