Recently active topics in Twitter tagged with bad link

The notifications system sent me the following email:
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Hi, whybird.

kenlewis (kenlewis) is now following your updates on Twitter.

Check out kenlewis's profile here:

http://twitter.com/kenlewis

You may follow kenlewis as well by clicking on the "follow" button.

Best,
Twitter
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The link to the new follower does not work. The correct link (as seen in my actual followers list) is http://twitter.com/kenbrief . The follower's username is kenbrief, and real name is kenlewis.