Dear experts,
I am following Chaim Bendelac's excellent blog Developing with XS Advanced: A TinyWorld Tutorial.
However, executing the tinyworld:tinydb::createCountry SQL Procedure fails with a strange error message "Executing the SQL Statement is not valid...":

Any idea what might cause this would be very much appreciated. My HANA system is version 1.00.121.00.1466466057.
However, I did not leave it there, but tried to debug the SQL Procedure. For this I gave my user the Debugger role:

I also set the system parameters accordingly and restarted it to be sure that the changes got applied:

However, when trying to Toggle the Connection, I get this error message, that SQL Debugging is not ready. Could not connect SQL Debugging for Service...:

What am I missing?
Many thanks for any help in advance
Frank