Login as Testuser impossible

[Uranus]

Server is running but I can not Login as testuser. In the open-exchange.log.0 i found:
warning: /opt/open-xchange/etc/groupware/servletConfig does not exist ..

how i can create this File? Is it the reason for this failed login?

I believe this appears at this step:

/opt/open-xchange/sbin/oxinstaller --servername=oxserver --configdb-pass=db_password \
--master-pass=admin_master_password --ajp-bind-port=localhost

setting up groupware configuration /opt/open-xchange/etc/groupware
..................................................
groupware daemon must now be restarted if already running
setting up admin daemon configuration /opt/open-xchange/etc/admindaemon
......................
*** RMI authentication is enabled
using oxadminmaster as master account
admin daemon must now be restarted if already running
what can I do?

[fov]

have you cre8 the testuser with /opt/open-xchange/sbin/createuser .... ?