[pkg-kolab] Upgrade issue kolabd 2.2.3

[Falk Scheerschmidt]

I have a tricky problem. When I made a safe-upgrade kolabd print the  
following error message. I can't see where the bug is:

$ aptitude safe-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done
The following packages will be upgraded:
   kolabd
1 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/66.7kB of archives. After unpacking 0B will be used.
Do you want to continue? [Y/n/?]
Writing extended state information... Done
(Reading database ... 41955 files and directories currently installed.)
Preparing to replace kolabd 2.2.2-20090514-2 (using .../ 
kolabd_2.2.3-20091217-1_all.deb) ...
ERROR: Site kolab does not exist!
dpkg: warning - old pre-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
ERROR: Site kolab does not exist!
dpkg: error processing /var/cache/apt/archives/ 
kolabd_2.2.3-20091217-1_all.deb (--unpack):
  subprocess new pre-removal script returned error exit status 1
Starting Kolab server: kolabd.
Errors were encountered while processing:
  /var/cache/apt/archives/kolabd_2.2.3-20091217-1_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
Reading task descriptions... Done


Some ideas?

Thx