Can't locate version/vpp.pm?

[Ralf Hildebrandt]

How can I fix that?

Mar 21 09:52:00 bhaal amavis[22192]: logging initialized, log level 2, syslog: amavis.mail
Mar 21 09:52:00 bhaal amavis[22192]: starting.  /usr/sbin/amavisd at bhaal.floppy.org amavisd-new-2.6.4 (20090625), Unicode aware, LC_ALL="POSIX", LC_CTYPE="de_DE.UTF-8", LANG="POSIX"
Mar 21 09:52:00 bhaal amavis[22192]: user=, EUID: 65 (65);  group=, EGID: 114 114 (114 114)
Mar 21 09:52:00 bhaal amavis[22192]: Perl version               5.012003
Mar 21 09:52:00 bhaal amavis[22192]: INFO: no optional modules: unicore::Canonical.pl unicore::Exact.pl unicore::PVA.pl
Mar 21 09:52:00 bhaal amavis[22192]: SpamControl: scanner SpamAssassin, module Amavis::SpamControl::SpamAssassin
fetch_modules: error loading optional module Mail/SPF.pm:
  Can't locate version/vpp.pm in @INC (@INC contains: lib
/usr/lib/perl5/site_perl/5.12.3/x86_64-linux-thread-multi
/usr/lib/perl5/site_perl/5.12.3
/usr/lib/perl5/vendor_perl/5.12.3/x86_64-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.12.3
/usr/lib/perl5/5.12.3/x86_64-linux-thread-multi /usr/lib/perl5/5.12.3) at (eval 130) line 2.
  BEGIN failed--compilation aborted at (eval 130) line 2.
  Compilation failed in require at /usr/lib/perl5/vendor_perl/5.12.3/Mail/SPF.pm line 24.
  BEGIN failed--compilation aborted at /usr/lib/perl5/vendor_perl/5.12.3/Mail/SPF.pm line 24.
  Compilation failed in require at /usr/sbin/amavisd line 197.
Mar 21 09:52:00 bhaal amavis[22192]: INFO: SA version: 3.3.1, 3.003001, no
optional modules: Image::Info Image::Info::GIF Image::Info::JPEG
Image::Info::PNG Image::Info::TIFF Mail::SPF

-- 
Ralf Hildebrandt
  Geschäftsbereich IT | Abteilung Netzwerk
  Charité - Universitätsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de