Error in git-cl creating a new issue

[John Gourlay]

I just submitted a small change to the Contributors Guide using git-cl. The 
patch got into codereview.appspot.com, but not into 
sourceforge.net/p/testlilyissues/issues/. I let git-cl create a new issue for 
the patch, but it produced a bunch of error messages. Does anyone have an idea 
about why? How do I proceed now? The error messages were:

Please enter a valid tracker issue number
(or enter nothing to create a new issue): 
Error code 403
Failed URL was https://sourceforge.net/rest/p/testlilyissues/issues//new
Failed data was 
ticket_form.summary=Change+several+instances+of+%22git+cl%22+in+the+Contributors+Guide+to+%22git-cl%22.&ticket_form.custom_fields._patch=new&ticket_form.custom_fields._type=Enhancement&ticket_form.description=Change+several+instances+of+%22git+cl%22+in+the+Contributors+Guide+to+%22git-cl%22.%0A%0Ahttp%3A%2F%2Fcodereview.appspot.com%2F282960043&access_token=51956463ff919409e05&ticket_form.status=Started

John Gourlay