user access and postnuke

hi

I have got gallery working in postnuke :D

I works great when you are Guest

But when I login under postnuke then I get this error

 Error (ERROR_MISSING_OBJECT) : 2 GalleryUser

    * in modules/core/classes/helpers/GalleryEntityHelper_simple.class at line 138 (gallerystatus::error)
    * in modules/core/classes/GalleryCoreApi.class at line 2207 (galleryentityhelper_simple::loadentitybyexternalid)
    * in modules/core/classes/GalleryEmbed.class at line 184 (gallerycoreapi::loadentitybyexternalid)
    * in modules/core/classes/GalleryEmbed.class at line 94 (galleryembed::checkactiveuser)
    * in /htdocs/postnuke/html/modules/pnGallery2/pnuser.php at line 85 (galleryembed::init)
    * in /htdocs/postnuke/html/includes/pnMod.php at line 685
    * in /htdocs/postnuke/html/index.php at line 88

please help

cheers
hamba