I imported the database for lesson 28 but am unable to login because I don't know the existing password for any of the users in the contacts. How can I login or add a new admin user?

I rewatched the video and got my answer. Thanks.

Glad you found it. Just in case anyone else missed it and is looking for them, the same password is used for all the contacts in the database and that is 12345678

Obviously, you wouldn't do that in a real site :)