Can not create new user with admintool

|Datasource set to Passwd

Admintool returns following error:

[2004-11-04 09:33:12] Missing UserIDField directive required for 
NoCat::User object!
[2004-11-04 09:33:12] Missing UserPasswdField directive required for 
NoCat::User object!
Can't load class 'NoCat::Source::DBI': Can't locate DBI.pm in  <at> INC ( <at> INC 
contains: /usr/local/nocat/authserv/bin/../lib /usr/local/nocat/gw/lib 
/usr/lib/perl5/5.8.1/i586-linux-thread-multi /usr/lib/perl5/5.8.1 
/usr/lib/perl5/site_perl/5.8.1/i586-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl 
/usr/lib/perl5/vendor_perl/5.8.1/i586-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl .) at 
/usr/local/nocat/authserv/bin/../lib/NoCat/Source/DBI.pm line 4, <FILE> line 1.
BEGIN failed--compilation aborted at 
/usr/local/nocat/authserv/bin/../lib/NoCat/Source/DBI.pm line 4, <FILE> line 1.
Compilation failed in require at (eval 1) line 3, <FILE> line 1.
  at ./admintool line 121
gw2:/usr/local/nocat/authserv/bin #