Связка squid 3.3 + squidGuard 1.4

squid.conf:
acl localnet src 10.0.0.0/16

http_port 127.0.0.1:3128

cache_dir ufs /usr/local/squid/cache 3000 16 256

maximum_object_size 320 MB

quick_abort_min 5 MB

coredump_dir /usr/local/squid/cache

access_log /usr/local/squid/log/access.log squid

log_mime_hdrs on

http_access allow localnet

http_access deny all

url_rewrite_program /usr/local/bin/squidGuard -c /usr/local/etc/squid/squidGuard.conf
url_rewrite_children 3

squidGuard.conf:
dbhome /var/db/squidGuard
logdir /var/log/

source sample-clients {
     ip 10.0.0.0/24
}

dest hacking {
    domainlist hacking/domains
    urllist hacking/urls
}
dest violence {
    domainlist violence/domains
    urllist violence/urls
    expressionlist violence/expressions
}
dest proxy {
    domainlist proxy/domains
    urllist proxy/urls
}
dest porn {
    domainlist porn/domains
    urllist porn/urls
    expressionlist porn/expressions
}
dest mail {
    domainlist mail/domains
}
dest warez {
    domainlist warez/domains
    urllist warez/urls
}
dest gambling {
    domainlist gambling/domains
    urllist gambling/urls
}
dest drugs {
    domainlist drugs/domains
    urllist drugs/urls
}
dest audio-video {
    domainlist audio-video/domains
    urllist audio-video/urls
}
dest aggressive {
    domainlist aggressive/domains
    urllist aggressive/urls
}
dest ads {
    domainlist ads/domains
    urllist ads/urls
}

acl {
     sample-clients {
         pass     !hacking !violence !proxy !porn !mail !warez !gambling !drugs !audio-video !aggressive !ads !in-addr any
     }

     default {
         pass     none
         redirect http://pedliceum.altai.ru/closed/closed.html
     }
}

в логах сквида в логах сквида повторяется бесконечное число раз:
2012/12/16 05:00:01 kid1| Failed to select source for '[null_entry]'
2012/12/16 05:00:01 kid1|   always_direct = 0
2012/12/16 05:00:01 kid1|    never_direct = 0
2012/12/16 05:00:01 kid1|        timedout = 0

В чем может быть дело?