Due to a security flaw found in the code today someone has managed to exploit a hole in the system and subsequently remove all download information for all files on the database. As a result I have had to restore the system to the last database backup, which was on the 26th of November (6 days ago).
I apologise for the inconvenience but all database related information, including download stats and any new downloads added to the database since this date will no longer be present.
The restore is now complete and you can reupload/edit your files as necessary again.
This has only affected those people who have uploaded or edited their files in the past week.