Delivery Error with kolab 2.2.1

[Michael Pasdziernik]

Hi,
With kolab 2.2.1 postfix bounces all incomming mail.
This is the error message from postfix.log:

Apr 09 15:17:28 vs2.pasdziernik.net <info> postfix/pipe[31513]: 3F9241C58B8C: 
to=<michael at pasdziernik.net>, relay=kolabfilter, delay=1.6, 
delays=1/0.06/0/0.48, dsn=5.3.0, status=bounced (Command died with status 42: 
"/kolab/bin/php")

Kolab is installed from source on debian lenny (amd64).

Any ideas what might be the problem?

Thanks 
Michael