why do i get this error, and how to solve it ? 
:
 
 
-----------------------------------------------------------------------------
 
REG-FO_A@localhost> create_domain ubb.fo 
ID004333 NULL NS2 (12 m) ID004333
Client-side validation command:
xmllint 
--noout --schema "/usr/share/fred-client/schemas/all-1.4.xsd" -
Do you really 
want to send this command to the server? (y/N): y
Client-side validation 
command:
xmllint --noout --schema 
"/usr/share/fred-client/schemas/all-1.4.xsd" -
Return 
code:              
2200
Reason:                   
Authentication error 
 
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-1.3" 
xsi:schemaLocation="http://www.nic.cz/xml/epp/domain-1.3 
domain-1.3.xsd"><domain:name>ubb.fo</domain:name>
<domain:period 
unit="m">12</domain:period>
<domain:nsset>NS2</domain:nsset>
<domain:registrant>ID004333</domain:registrant>
<domain:admin>ID004333</domain:admin>
</domain:create>
</create>
<clTRID>jjzt002#10-03-22at19:39:42</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="2200"><msg>Authentication 
error</msg>
</result>
<trID><clTRID>jjzt002#10-03-22at19:39:42</clTRID>
<svTRID>ccReg-0000000224</svTRID>
</trID>
</response>
</epp>