BEEM - Android XMPP

When adding any contact from the Beem I fill in:

username: foo@myserver.local
alias:
group:

then adding him it shows message: "Error login" and user is not added.
trying to fill in alias and/or group is not helping

Workaround: do it the other way around (if 2nd user has other IM client)
when the user myserver.local adds me, then it works and I see him later on contact list