sp blitz – sp_Blitz – RegOpenKeyEx() returned error 2

I’m running the latest sp_Blitz script on a SQL 2016 Std server on a Windows Server 2016 physical box. I’m getting the following error. What could be causing this and how do I troubleshoot it?

RegOpenKeyEx() returned error 2, ‘The system cannot find the file specified.’
Msg 22001, Level 1, State 1
Warning: Null value is eliminated by an aggregate or other SET operation.
Msg 0, Level 11, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.