When cimba login fails at http://cimba.co/#/login , it pops up a dialog panel which points you to
https://auth.my-profile.eu/auth/index.php?verbose=on
to diagnose the problem, but that domain doesn't exist:
$ nslookup my-profile.eu
Server: 128.30.2.23
Address: 128.30.2.23#53
Non-authoritative answer:
Name: my-profile.eu
Address: 212.1.214.33
$ nslookup auth.my-profile.eu
Server: 128.30.2.23
Address: 128.30.2.23#53
** server can't find auth.my-profile.eu: NXDOMAIN
(Not sure why my login failed either -- might be separate bug)