SquidGard FATAL: Error db_open: No such file or directory

cd /var/lib/squidguard/db
rsync -arpogvt rsync://ftp.ut-capitole.fr/blacklist .
mv -fv dest/* .
rm -rf /var/lib/squidguard/db/dest/
chown -R proxy:proxy /var/lib/squidguard/

# verify
squidGuard -d

# that's all !