[kronolith] horde registry

[Jorge]

Hi,

I'm using horde 2.2.1 framework and I'm trying to run kronolith 1.1RC2. 
What exactly should be added to horde /conf/registry.php to make 
kronolith work ? I alyways get this error:

A fatal error has occurred:

'' is not configured in the Horde Registry.

[line 753 of /export/home/webuser/public_html/horde/lib/Registry.php]

Details have been logged for the administrator.

Thanks.