Set Up Case Escalation and Entitlements > Create Support Processes

I'm on the very first module of this project and can't complete it as I get this error: "We can't find a case associated with the contact 'Pat Stumuller'." This is b/c I cannot create a case.

I followed the instructions:

1. In the Global Search box, enter Pat Stumuller and select Pat Stumuller when the name pops up.
2. In the Cases related list, click New.
3. Select Inquiry as the record type, and click Next.
4. Complete the Inquiry case details.

And when I clicked "save" I get this error for Pat as contact name -- any ideas on how I can overcome this pls?