Unable to delete user using ldapdelete from one of the master servers

Issue

Unable to delete user from RHDS LDAP tree on master 1. Below is the error

[xx@xx ldapmenu]$ ldapdelete -r -v -D "uid=test,ou=Special Users,dc=example,dc=com" -w xxxx -H ldaps://m1.example.com:636 -x uid=prabwou,ou=users,ou=idadmin,dc=example,dc=com
ldap_initialize( ldaps://m1.example.com:636 ) 
deleting entry "uid=prabwou,ou=users,ou=idadmin,dc=example,dc=com" 
deleting children of: uid=prabwou,ou=users,ou=idadmin,dc=example,dc=com 
ldap_search: Critical extension is unavailable (12) 
ldap_delete: Operations error (1)