(Linux MTA) Not able to restart Anti Spam Engine

This problem is based on a Mailshell signature update ( January 21 at approximately 0400 GMT). It isn’ t possible to start Anti Spam engine. The solution consists of deleting the signature file causing the problem and starting then the Anti-spam service. In order to do so, the following instruction must be typed in for each of the protections:

Panda for Qmail:
rm /opt/pandasoftware/var/pav_qmail/spam/sc15.bin.incr.2008.01.22.04.01.22
/etc/init.d/pav_spamsrv_qm start

Panda for Sendmail:
rm /opt/pandasoftware/var/pav_milter/spam/sc15.bin.incr.2008.01.22.04.01.22
/etc/init.d/pav_spamsrv_sm start

Panda for Postfix:
rm /opt/pandasoftware/var/pav_postfix/spam/sc15.bin.incr.2008.01.22.04.01.22
/etc/init.d/pav_spamsrv_po start