Linchpin - Demo/Test instance mistake, can't log in

Hello, I downloaded a test instance for Linchpin. I received a login by email and a password. I can’t log in with my mail-address as username. I tried several times. I would appreciate your help. Thanks!

Please use “admin” as the user name and not your email address. It should work like that. Would you please try that? Thanks!

At Log In - Linchpin we have added the regular admin demo accounts as well:

Thanks so much, it worked!