Error for named service

[freed1985]

When I start service named.
It`s report a error

Code:

[root@XXX init.d]# service named start
Starting named:
Error in named configuration:
/etc/named-ispcp.conf:12: zone 'cp.gofree.us': already exists previous definition: /etc/named-ispcp.conf:4
/etc/named-ispcp.conf:4: zone 'cp.gofree.us': already exists previous definition: /etc/named-ispcp.conf:4
/etc/named-ispcp.conf:12: zone 'cp.gofree.us': already exists previous definition: /etc/named-ispcp.conf:4
[FAILED]

But I can`t find this file in /etc.
Then I want to know.What`s this service doing and how to fix this error?