各位幫忙看一下，為何sa-learn發生錯誤

zgy876

/etc/cron.hourly/sa-learn:

plugin: failed to parse plugin (from @INC): Bareword "Mail::SpamAssassin::Constants::CHARSETS_LIKELY_TO_FP_AS_CAPS" not allowed while "strict subs" in use at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/HeaderEval.pm line 968.
Compilation failed in require at (eval 66) line 1.

plugin: failed to create instance of plugin Mail::SpamAssassin:lugin::HeaderEval: Can't locate object method "new" via package "Mail::SpamAssassin:lugin::HeaderEval" at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/HeaderEval.pm line 39.

plugin: failed to parse plugin (from @INC): "CHARSETS_LIKELY_TO_FP_AS_CAPS" is not exported by the Mail::SpamAssassin::Constants module
Can't continue after import errors at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/MIMEEval.pm line 22
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/MIMEEval.pm line 22.
Compilation failed in require at (eval 6 line 1.

plugin: failed to create instance of plugin Mail::SpamAssassin:lugin::MIMEEval: Can't locate object method "new" via package "Mail::SpamAssassin:lugin::MIMEEval" at (eval 69) line 1.

/etc/cron.hourly/sa-learn.dat:

plugin: failed to parse plugin (from @INC): Bareword "Mail::SpamAssassin::Constants::CHARSETS_LIKELY_TO_FP_AS_CAPS" not allowed while "strict subs" in use at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/HeaderEval.pm line 968.
Compilation failed in require at (eval 66) line 1.

plugin: failed to create instance of plugin Mail::SpamAssassin:lugin::HeaderEval: Can't locate object method "new" via package "Mail::SpamAssassin:lugin::HeaderEval" at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/HeaderEval.pm line 39.

plugin: failed to parse plugin (from @INC): "CHARSETS_LIKELY_TO_FP_AS_CAPS" is not exported by the Mail::SpamAssassin::Constants module
Can't continue after import errors at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/MIMEEval.pm line 22
BEGIN failed--compilation aborted at /usr/lib/perl5/site_perl/5.8.8/Mail/SpamAssassin/Plugin/MIMEEval.pm line 22.
Compilation failed in require at (eval 6 line 1.

plugin: failed to create instance of plugin Mail::SpamAssassin:lugin::MIMEEval: Can't locate object method "new" via package "Mail::SpamAssassin:lugin::MIMEEval" at (eval 69) line 1.