The named process on the DNS server is always suspended. Please kindly advise!

The named process on the DNS server is always suspended. Please kindly advise! -- Linux Enterprise Application-Linux server application information. For details, refer to the following section. Jun 2 19:26:10 dns named [22520]: client 10.52.4.71 #37104: RFC 1918 response from Internet for 2.8.52.10.in-addr. arpa
Jun 2 19:26:12 dns named [22520]: client 10.52.4.8 #44680: RFC 1918 response from Internet for 2.8.52.10.in-addr. arpa
Jun 2 19:26:12 dns named [22520]: client 10.52.4.70 #32773: RFC 1918 response from Internet for 2.8.52.10.in-addr. arpa
Jun 2 19:26:13 dns named [22520]: client 10.52.4.71 #37104: RFC 1918 response from Internet for 2.8.52.10.in-addr. arpa
Jun 2 19:26:13 dns named [22520]: dispatch. c: 3023: REQUIRE (res-> item_out = isc_boolean_true) failed
Jun 2 19:26:13 dns named [22520]: exiting (due to assertion failure)
Jun 2 19:43:23 dns sshd (pam_unix) [23392]: authentication failure; logname = uid = 0 euid = 0 tty = ssh ruser = rhost = 10.52.8.2

User = root
Jun 2 19:43:41 dns sshd (pam_unix) [23394]: session opened for user root by root (uid = 0)
Jun 2 19:44:23 dns named: failed
Jun 2 19:44:26 dns named [23453]: starting BIND 9.5.1b1-u named-t/var/named/chroot
Jun 2 19:44:26 dns named [23453]: loading configuration from '/etc/named. conf'
Jun 2 19:44:26 dns named [23453]:/etc/named. conf: 110: option 'Allow-Update' is not allowed in 'slave 'zone 'hq .ctc.com'
Jun 2 19:44:26 dns named [23453]: using default UDP/IPv4 port range: [1024,655 35]
Jun 2 19:44:26 dns named [23453]: using default UDP/IPv6 port range: [1024,655 35]
Jun 2 19:44:26 dns named [23453]: listening on IPv4 interface lo, 127.0.0.1 #53
Jun 2 19:44:26 dns named [23453]: listening on IPv4 interface eth0, 10.52.4.40 #53
Jun 2 19:44:26 dns named [23453]: default max-cache-size (33554432) applies
Jun 2 19:44:26 dns named [23453]: automatic empty zone: 127. IN-ADDR.ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: 254.169.IN-ADDR. ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: 2.0.192.IN-ADDR. ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: zookeeper installed in-ADDR. ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone:

0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa
Jun 2 19:44:26 dns named [23453]: automatic empty zone:

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa
Jun 2 19:44:26 dns named [23453]: automatic empty zone: D. F. IP6.ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: 8. E. F. IP6.ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: 9. E. F. IP6.ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: A. E. F. IP6.ARPA
Jun 2 19:44:26 dns named [23453]: automatic empty zone: B. E. F. IP6.ARPA
Jun 2 19:44:26 dns named [23453]: default max-cache-size (33554432) applies: view _ bind
Jun 2 19:44:26 dns named [23453]: command channel listening on 127.0.0.1 #953
Jun 2 19:44:26 dns named [23453]: zone 0. in-addr.arpa/IN: NS 'localhost. 0. in-addr.arpa 'has no address records (A or AAAA)
Jun 2 19:44:26 dns named [23453]: zone 0. in-addr.arpa/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone 1.52.10.in-addr. arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 3.52.10.in-addr. arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 4.52.10.in-addr. arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 52.52.10.in-addr. arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 0.0.127.in-addr. arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 132. in-addr.arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 135. in-addr.arpa/IN: loaded serial 1997022700
Jun 2 19:44:26 dns named [23453]: zone 255. in-addr.arpa/IN: NS 'localhost. 255. in-addr.arpa 'has no address records (A or

AAAA)
Jun 2 19:44:26 dns named [23453]: zone 255. in-addr.arpa/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa/IN: loaded

Serial 1997
022700
Jun 2 19:44:26 dns named [23453]: zone gs.ctc.com/IN: NS 'gs .ctc.com 'has no address records (A or AAAA)
Jun 2 19:44:26 dns named [23453]: zone gs.ctc.com/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone hq.ctc.com/IN: loaded serial 8706
Jun 2 19:44:26 dns named [23453]: zone gansutelcom.com/in: NS 'gansutelcom. com' has no address records (A or AAAA)
Jun 2 19:44:26 dns named [23453]: zone gansuelecom.com/in: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone gsdx.com/IN: NS 'gsdx. com' has no address records (A or AAAA)
Jun 2 19:44:26 dns named [23453]: zone gsdx.com/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone avscs. local/IN: NS 'avscs. local' has no address records (A or AAAA)
Jun 2 19:44:26 dns named [23453]: zone avscs. local/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone localdomain/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: zone localhost/IN: loaded serial 42
Jun 2 19:44:26 dns named [23453]: running
Jun 2 19:44:26 dns named [23453]: zone hq.ctc.com/IN: sending notifies (serial 8706)
Jun 2 19:44:26 dns named: named start succeeded
Jun 2 19:44:27 dns named [23453]: checkhints: L.ROOT-SERVERS.NET/A (199.7.83.42) missing from hints
Jun 2 19:44:27 dns named [23453]: checkhints: L.ROOT-SERVERS.NET/A (198.32.64.12) extra record in hints
Jun 2 19:44:46 dns named [23453]: client 10.52.4.8 #44680: RFC 1918 response from Internet for 4.8.52.10.in-addr. arpa
Jun 2 19:44:46 dns named [23453]: client 10.52.4.71 #37574: RFC 1918 response from Internet for 4.8.52.10.in-addr. arpa
The server has been stable, but recently its services have been suspended. The reason is that the operating system version of linuxAS4 bind is 9.5.1, the clients-per-query decreased to 30 information will always appear in the logs before they die. Please help me. Thank you !! The above is the log of the dead end.