The reports might not run due to the amount of cookies stored by Rapport. To get these to run you'll have to clear the Rapport 3 cookies (by clicking on the image icon at the top right hand corner of Rapport and clicking on 'Clear Rapport3 Cookies')
and then run the report by clicking on the printer icon inside the projects section (or particular section the report is in). This should now let you run the reports.
If after doing this, you are still having issues with the reports running, do let me know.