Unable to see Burndown reports

I've already uploaded this in the "Using Team Concert" forum, but since the solutions seems to involved some work in the jazz team server I have no access to, I'm publishing my issue here as well.

I have a public project called "Shopping Cart" in RTC and I was trying to generate some reports. However, when I click the release burndown or the sprint burndown in the project dashboard view, I get a message saying that perhaps the data recolection jobs have not been executed yet.

What can I do?

Best regards,

Joshua