Question with automatic forms on tutorial documentation travel request. Bonita BPM 7.1.0

Hi all!

I have a problem to run the example travel request with temporary forms.

When I start the process, complete the first form and click on the start button. The system shows me the following error message:

Issues to create a contract on Bonita BPM 7.1.0 documentation.

I am studying the Bonita BPM 7.1.0 documentation by following the tutorial to understand how to create new applications Workflow. Even would like to congratulate once again all staff BonitaSoft, I get more and more excited about the tool. During these studies, I found a part of the documentation that may have been a little misunderstanding.