I expect the lack of response here suggests that this is not a common error that others have seen. I've also done some searching and can't find any meaningful reference to this error message appearing anywhere.
If this is still occurring for you then resolving it is likely something that will need the assistance of Flexera Support<> to do appropriate troubleshooting.
(Did my reply solve the question? Click "ACCEPT AS SOLUTION" to help others find answers faster. Liked something? Click "KUDO". Anything expressed here is my own view and not necessarily that of my employer, Flexera.)