What would cause this?

Jun 10 11:21:29 spamd0 spamd[20360]: Odd number of elements in hash
assignment at
/usr/lib/perl5/vendor_perl/5.8.8/Mail/SpamAssassin/BayesStore.pm line 322.
Jun 10 11:21:29 spamd0 spamd[20360]: Use of uninitialized value in list
assignment at
/usr/lib/perl5/vendor_perl/5.8.8/Mail/SpamAssassin/BayesStore.pm line 322.
Jun 10 11:21:29 spamd0 spamd[20362]: Odd number of elements in hash
assignment at
/usr/lib/perl5/vendor_perl/5.8.8/Mail/SpamAssassin/BayesStore.pm line 322.
Jun 10 11:21:29 spamd0 spamd[20362]: Use of uninitialized value in list
assignment at
/usr/lib/perl5/vendor_perl/5.8.8/Mail/SpamAssassin/BayesStore.pm line 322.


Thanks in advance.