error during update: Failed to retrieve thread information

Hello,

When I run update.php, it automatically selects 6000 for Disqus. When I proceed with the update, Disqus fails with this message:

The following queries were executed
disqus module
Update #6000
Failed: Failed to retrieve thread information for http://radj.blushama.com/photo/8ab9159f.

Even though it fails, the module still seems to work (can make comments, can retrieve comments).

Any ideas why this happens?

Thanks,
Roger