Export in Cirrus 3.5.1 worked before, but now the following error message appears:

I have tried both, from Configuration manager and from Policy Reporting with the same result.
The only thing changed in the mean time, I can think of, is upgrade of Orion from 8.1 to 8.5 on the same server. The upgrade went flawlessly.
Is there an easier way around than suggested reinstallation?
Tomaz