ldap problem????
 

After my ldap was restarted,
I run
#./migration_all_online.sh
messages as follows:

Creating naming context entries...
Migrating aliases...
Migrating groups...
Migrating hosts...
Migrating networks...
Migrating users...
Migrating protocols...
Migrating rpcs...
Migrating services...
Migrating netgroups...
Migrating netgroups (by user)...
Migrating netgroups (by host)...
adding new entry "dc=nrg,dc=ccit"
ldap_add: Insufficient access

ldif_record() = 50
Importing into LDAP...
adding new entry "ou=Hosts,dc=nrg,dc=ccit"
ldap_add: No such object
additional info: parent does not exist

ldif_record() = 32
/usr/bin/ldapadd: returned non-zero exit status

how to slove the problem????