Colleague can't login to Launchpad

(17:37:13) rlaager: I'm trying to help a colleague setup a Launchpad account. He created an account, confirmed his email. He can login to Ubuntu One, but when trying to login to Launchpad, after clicking "Yes, log me in", it fails with the Launchpad crash page "something went wrong".
(17:50:37) cjwatson: rlaager: Can you raise a ticket on https://answers.launchpad.net/launchpad/+addquestion with the OOPS ID they should have got?

Error ID: OOPS-5f4c568e365ab8c78f9f926f1a8ed88e