dns error:loading master file named.mail.alhasawi.com: file not found

Hi experts
Redhat advance server 4.0
Please its very urgent
Please look at the /var/log/messages
Dec 12 09:25:09 linux named[4043]: loading configuration from '/etc/named.conf'
Dec 12 09:25:09 linux named: named startup succeeded
Dec 12 09:25:09 linux named[4043]: listening on IPv4 interface lo, 127.0.0.1#53
Dec 12 09:25:09 linux named[4043]: listening on IPv4 interface eth0, 192.168.0.252#53
Dec 12 09:25:09 linux named[4043]: command channel listening on 127.0.0.1#953
Dec 12 09:25:09 linux named[4043]: zone 0.0.127.in-addr.arpa/IN: loaded serial 1997022700
Dec 12 09:25:09 linux named[4043]: zone 0.168.192.in-addr.arpa/IN: loading master file named.192.168.0: file not found
Dec 12 09:25:09 linux named[4043]: zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded serial 1997022700
Dec 12 09:25:09 linux named[4043]: zone mail.alhasawi.com/IN: loading master file named.mail.alhasawi.com: file not found
Dec 12 09:25:09 linux named[4043]: zone localdomain/IN: loaded serial 42
Dec 12 09:25:09 linux named[4043]: zone localhost/IN: loaded serial 42



HERE IS MY /etc/named.conf file

//
// named.conf for Red Hat caching-nameserver
//

options {
      directory "/var/named";
      dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
      /*
       * If there is a firewall between you and nameservers you want
       * to talk to, you might need to uncomment the query-source
       * directive below.  Previous versions of BIND always asked
       * questions using port 53, but BIND 8.1 uses an unprivileged
       * port by default.
       */
       // query-source address * port 53;
};

//
// a caching only nameserver config
//
controls {
      inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};

zone "." IN {
      type hint;
      file "named.ca";
};

zone "localdomain" IN {
      type master;
      file "localdomain.zone";
      allow-update { none; };
};

zone "localhost" IN {
      type master;
      file "localhost.zone";
      allow-update { none; };
};

zone "0.0.127.in-addr.arpa" IN {
      type master;
      file "named.local";
      allow-update { none; };
};

zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa" IN {
        type master;
      file "named.ip6.local";
      allow-update { none; };
};

zone "mail.alhasawi.com" IN {
      type master;
      file "named.mail.alhasawi.com";
      allow-update { none; };
};

zone "0.168.192.in-addr.arpa" IN {
      type master;
      file "named.192.168.0";
      allow-update { none; };
};

include "/etc/rndc.key";


It tried firewall on and off, but same error