spotlight diagnostic server crashes after fresh installation

I am attempting to relocate our diagnostic server to a new machine, following the documentation titled "Migrate Spotlight to a new Diagnostic Server host".  In step 2, part 2, when we open the spotlight client, it fails to connect.  When I look at the service manager, the diagnostic server service has stopped, and will not stay running for more than a few seconds.  When I check the service logs, I see many messages stating "Key not valid for use in specified state."

Our spotlight version is

Please advise, and TIA.