Error in Hybris catalog Importation

Hi CQ Developpers,

I'm working on Hybris catalog importation in CQ5.6.0 and when I'm trying to import a baseStore with "MyCatalog" , I get a node created in /etc/commerce/products but no product is imported, so this error showed in the error log :

ERROR* [127.0.0.1 [1365438921685] POST /libs/commerce/content/import.html HTTP/1.1] com.adobe.cq.commerce.hybris.impl.importer.HybrisImporterImpl Importing catalog "MyCatalog" from Hybris failed:  javax.xml.stream.XMLStreamException: ParseError at [row,col]:[5,16]

Message: expected start or end tag

Thank you for your help.