QSS won't install

[chuy08]

I get this for an error message with I attempt to install the QSS functionality of the Mail toaster using toaser_setup.pl -s qss:

qs_stats: sources already downloaded!
qs_stats: already installed, skipping.
file_write: couldn't open /var/spool/qmailscan/quarantine.log: No such file or directory at /usr/local/lib/perl5/site_perl/5.8.6/Mail/Toaster/Setup.pm line 2748


any ideas?