when i run fred_sender with below xml file (we develop a interface to generate xml files for contacts, domain, nsset based on user input); i got these error:

ERROR: Parameter value syntax error 
Reason: Invalid nameserver hostname. 
Reason: Invalid nameserver hostname.

the content of that xml file:

nsset:create
<?xml version="1.0" encoding="utf-8" standalone="no"?>
<epp xmlns="urn:ietf:params:xml:ns:epp-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd"><command><create><nsset:create xmlns:nsset="http://www.nic.cz/xml/epp/nsset-1.2" xsi:schemaLocation="http://www.nic.cz/xml/epp/nsset-1.2 nsset-1.2.xsd"><nsset:id>NSSID:201005110000</nsset:id>
<nsset:ns><nsset:name>a.domain.test</nsset:name>
<nsset:addr>111.222.333.441</nsset:addr>
</nsset:ns>
<nsset:ns><nsset:name>b.domain.test</nsset:name>
<nsset:addr>111.222.333.442</nsset:addr>
</nsset:ns>
<nsset:tech>CID:201005110000</nsset:tech>
</nsset:create>
</create>
</command>
</epp>

Server OS:
Debian 5 32-bit

Installers used:
fred-client-2.1.4.tar.gz
fred-db-2.1.3.tar.gz
fred-doc2pdf-2.0.2.tar.gz
fred-idl-2.1.0.tar.gz
fred-mod-corba-1.3.0.tar.gz
fred-mod-eppd-2.1.1.tar.gz
fred-mod-whoisd-3.1.1.tar.gz
fred-pyfred-2.1.5.tar.gz
fred-server-2.1.11.tar.gz
fred-webadmin-3.1.4.tar.gz
fred-whois-2.1.2.tar.gz


--
Regards,

Umarzuki Mochlis
http://debmal.my