Piwik API - PDFReports.addReport

I'm trying to use the PDFReports module of the piwik API, specifically PDFReports.addReport. I tried the following in my browser for testing, but it I am receiving an error. Does anyone know if this is a bug or do I have something incorrect?

http://HOST_NAME/piwik/?module=API&method=PDFReports.addReport&idSite=1&description=testAddReport&period=week&hour=0&reportType=email&reportFormat=pdf&reports=ecommerceOrders&parameters=none&token_auth=TOKEN_AUTH