Finally made 2 contacts and 1 nsset but failed to make domain

REG-UMAR@192.168.56.6> create_domain umar.com UMAR NULL UMARNS01 NULL (24 m) NAZMAN
Client-side validation command:
xmllint --noout --schema "/usr/local/share/fred-client/schemas/all.xsd" -
Do you really want to send this command to the server? (y/N): y
Client-side validation command:
xmllint --noout --schema "/usr/local/share/fred-client/schemas/all.xsd" -
Return code:              2005
Reason:                   Parameter value syntax error

ERROR: Element that caused a server error condition: <domain:name xmlns:domain='http://www.nic.cz/xml/epp/domain-1.4'>umar.com</domain:name>
Reason: Domain name not applicable.

COMMAND: domain: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><domain:create xmlns:domain="http://www.nic.cz/xml/epp/domain-1.4" xsi:schemaLocation="http://www.nic.cz/xml/epp/domain-1.4 domain-1.4.xsd"><domain:name>umar.com</domain:name>
<domain:period unit="m">24</domain:period>
<domain:nsset>UMARNS01</domain:nsset>
<domain:registrant>UMAR</domain:registrant>
<domain:admin>NAZMAN</domain:admin>
</domain:create>
</create>
<clTRID>vwpb011#09-06-11at16:41:49</clTRID>
</command>
</epp>

ANSWER:
<?xml version="1.0" encoding="UTF-8"?>
<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"><response><result code="2005"><msg>Parameter value syntax error</msg>
<extValue><value><domain:name xmlns:domain="http://www.nic.cz/xml/epp/domain-1.4">umar.com</domain:name>
</value>
<reason>Domain name not applicable.</reason>
</extValue>
</result>
<trID><clTRID>vwpb011#09-06-11at16:41:49</clTRID>
<svTRID>ccReg-0000000058</svTRID>
</trID>
</response>
</epp>


no matter what domain i tried, what interface i'm using (CLI, interactive CLI and GUI), i still got the same error.

--
Regards,

Umarzuki Mochlis
http://gameornot.net