some trouble with bopm

In our net we have some trouble with bopm.
Early with this config all working fine, but now not.
~15•53•34~ [ProxyCheckHub1]: DNSBL -> Lookup error on 50.2.6.10.opm.blitzed.org: Server failure
~15•54•25~ [ProxyCheckHub1]: DNSBL -> Lookup error on 20.2.6.10.opm.blitzed.org: Server failure
~15•58•23~ [ProxyCheckHub1]: DNSBL -> Lookup error on 38.40.10.10.opm.blitzed.org: Server failure
~15•58•36~ [ProxyCheckHub1]: DNSBL -> Lookup error on 40.18.6.10.opm.blitzed.org: Server failure
~15•58•43~ [ProxyCheckHub1]: DNSBL -> Lookup error on 1.66.10.10.opm.blitzed.org: Server failure
~15•58•45~ [ProxyCheckHub1]: DNSBL -> Lookup error on 13.26.16.10.opm.blitzed.org: Server failure


version unreal: 3.2.2b (early unreal 3.2.2)

unrealircd.conf:

        dns {
                nameserver 80.94.160.2;
                timeout 2s;
                retries 2;
        };

bopm.conf:
options {
        pidfile = "/var/run/bopm/bopm.pid";
        dns_fdlimit = 64;
        scanlog = "/var/log/bopm/scan.log";
};
IRC {
        nick = "ProxyCheckHub1";
        realname = "Proxy Monitor";
        username = "bopm";
        server = "80.94.160.22";
        port = 6667;
       mode = "+scF";
     /* Hybrid / Bahamut / Unreal (in HCN mode) */
        connregex = "\\*\\*\\* Notice -- Client connecting.*: ([^ ]+) \\(([^@]+)@([^\\)]+)\\) \\[([0-9\\.]+)\\].*";
      kline = "GLINE *@%h 2w reason";
       perform = "PROTOCTL HCN";
};
OPM {
        blacklist{
        name  = "opm.blitzed.org";
        #name = "dnsbl.sorbs.net";
        type = "A record bitmask";
        ban_unknown = yes;
         reply {
              1 = "WinGate";
              2 = "Socks";
              4 = "HTTP";
              8 = "Router";
              16 = "HTTP POST";
           };
        };
};

...default scanners...

If I try to scan somebody:
~17•15•14~ [&Bock]: ProxyCheckHub1 scan 69.91.39.20
~17•15•14~ [ProxyCheckHub1]: CHECK -> Checking '69.91.39.20' for open proxies on all scanners
~17•15•14~ [ProxyCheckHub1]: DNSBL -> Lookup error on 20.39.91.69.opm.blitzed.org: Server failure
~17•15•14~ [ProxyCheckHub1]: CHECK -> All tests on 69.91.39.20 completed.

On server dns reply:

bock@hub1:~$ host 20.39.91.69.opm.blitzed.org
20.39.91.69.opm.blitzed.org has address 127.1.0.4

Seems to all right.
Can you help us? Any questions...
        
        
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Greetings,
 Bock                          mailto:[email protected]