SIMPLExml problem....

I tryed this simple PHP script that uses SimpleXML control:
<?php
   $users = simplexml_load_file('baza.xml');
     echo $users -> name;
?>

and i got:

Fatal error: Cannot clone object of class SimpleXMLElement due to
'zend.ze1_compatibility_mode' in /mnt/storage/users/w/i/p/wipe/formular.php
on line 381


i tryed the same code on 3 other servers including my localhost and it works
(the versions where PHP 5.04 and on the server with the problem it's 5.03) i
searched google
but i didn't got the answer...

http://wipe.host.sk
http://bihnet.org/Cruonit/wipe/