[Geoserver-users] Problem in use of layer WFS

Hi
I tried use a wfs layers (MapServer version 5.6.6). With a request "GetFeature" ou "GetMap", Geoserver (2.2) returns this erreur :

<?xml version="1.0" encoding="UTF-8"?>
<ServiceExceptionReport
     version="1.3.0"
     xmlns="http://www.opengis.net/ogc&quot;
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance&quot;
     xsi:schemaLocation="http://www.opengis.net/ogc http://10.20.1.13:80/geoserver/schemas/wms/1.3.0/exceptions_1_3_0.xsd&quot;&gt;
<ServiceException code="internalError">
Rendering process failed
Could not aquire feature:java.io.IOException: org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 193; Attribute "wfs" bound to namespace "http://www.w3.org/2000/xmlns/&quot; was already specified for element "wfs:FeatureCollection".
org.xml.sax.SAXParseException; lineNumber: 9; columnNumber: 193; Attribute "wfs" bound to namespace "http://www.w3.org/2000/xmlns/&quot; was already specified for element "wfs:FeatureCollection".
Attribute "wfs" bound to namespace "http://www.w3.org/2000/xmlns/&quot; was already specified for element "wfs:FeatureCollection".
</ServiceException></ServiceExceptionReport>

Thank you for your help and time.

Thanks!