The email notifications I receive from the forum letting me know of new comments to threads to which I'm subscribed contain bad URLs. The thread links in the emails result in a 'No Data Found' page being displayed.
For example, this is the link in the most recent email I received:
This is what the correct link should be:
As you can see, the bad link has 'en/business//' (including 2 slashes) whereas the correct link has 'us/home/'