[xwiki-users] Problem with Office Importer

Hi, I try to configure the Office Importer Plugin. I have installed an started openoffice on the server and xwiki also can connect to the openoffice Server. But when I try to import an office or also openoffice document I get the error message that the convertion failed. What can be the reason for that, the service is running! Thank you for your help, Florian