amavisd: Unrecognized character \xBB;

I have a problem to start the amavisd. When I try to start with /etc/init.d/amavis start I get the following error:

Starting amavisd: Problem in Amavis::DKIM code: Unrecognized character \xBB; marked by <-- HERE after <-- HERE near column 1 at /usr/lib/perl5/Net/DNS/RR/Unknown.pm line 1. Compilation failed in require at /usr/lib/perl5/Net/DNS/RR.pm line 15. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS/RR.pm line 15. Compilation failed in require at /usr/lib/perl5/Net/DNS/Packet.pm line 16. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS/Packet.pm line 16. Compilation failed in require at /usr/lib/perl5/Net/DNS/Resolver/Base.pm line 25. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS/Resolver/Base.pm line 25. Compilation failed in require at /usr/lib/perl5/Net/DNS/Resolver/UNIX.pm line 9. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS/Resolver/UNIX.pm line 9. Compilation failed in require at /usr/lib/perl5/Net/DNS/Resolver.pm line 19. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS/Resolver.pm line 22. Compilation failed in require at /usr/lib/perl5/Net/DNS.pm line 91. BEGIN failed--compilation aborted at /usr/lib/perl5/Net/DNS.pm line 91. Compilation failed in require at /usr/share/perl5/Mail/DKIM/DNS.pm line 14. BEGIN failed--compilation aborted at /usr/share/perl5/Mail/DKIM/DNS.pm line 14. Compilation failed in require at /usr/share/perl5/Mail/DKIM/PublicKey.pm line 18. BEGIN failed--compilation aborted at /usr/share/perl5/Mail/DKIM/PublicKey.pm line 18. Compilation failed in require at /usr/share/perl5/Mail/DKIM/Signature.pm line 13. BEGIN failed--compilation aborted at /usr/share/perl5/Mail/DKIM/Signature.pm line 13. Compilation failed in require at /usr/share/perl5/Mail/DKIM/Verifier.pm line 13. BEGIN failed--compilation aborted at /usr/share/perl5/Mail/DKIM/Verifier.pm line 13. Compilation failed in require at (eval 95) line 47. BEGIN failed--compilation aborted at (eval 95) line 47. (failed).

I think there is somthing like a BOM in any File. But where can I find it? I tryed to find the error with searching for the \xBB but no success.

Thank you for your help!

Regards Phil