Cannot create 'case'

Hi,
I like the concept of Case Traker 7.2 based on Entity. Unfortunately, I'm unable to create any 'case'

I have tried both manual config and the 'Create basic Project and Case types' button, but in both way, I'm getting on project/1/case/add the following message:

CaseTrackerCase Entities cannot be added because you have not created any casetracker_case types yet. Go to the casetracker_case type creation page to add a new casetracker_case type.

and of course I have some basic 'casetracker_case type'. Am I missing something?

Thanks for help.