WPG2 WordPress Gallery 2 errors…

Fatal G2 error
Here’s the error from G2: Error (ERROR_MISSING_OBJECT)

* in modules/core/classes/helpers/GalleryUserHelper_medium.class at line 143 (gallerycoreapi::error)
* in modules/core/classes/GalleryCoreApi.class at line 606 (galleryuserhelper_medium::fetchuserbyusername)
* in /home/content/r/k/k/rkkadmin/html/wp-content/plugins/wpg2/wpg2embed.inc at line 229 (gallerycoreapi::fetchuserbyusername)
* in /home/content/r/k/k/rkkadmin/html/wp-content/plugins/wpg2/wpg2embed.inc at line 110
* in /home/content/r/k/k/rkkadmin/html/wp-content/plugins/wpg2/wpg2functions.inc at line 523
* in ??? at line 0
* in /home/content/r/k/k/rkkadmin/html/wp-includes/plugin.php at line 311
* in /home/content/r/k/k/rkkadmin/html/wp-includes/general-template.php at line 883
* in /home/content/r/k/k/rkkadmin/html/wp-content/themes/dark_classic/header.php at line 37
* in /home/content/r/k/k/rkkadmin/html/wp-includes/theme.php at line 472
* in /home/content/r/k/k/rkkadmin/html/wp-includes/general-template.php at line 8
* in /home/content/r/k/k/rkkadmin/html/wp-content/themes/dark_classic/page.php at line 1
* in /home/content/r/k/k/rkkadmin/html/wp-includes/template-loader.php at line 37
* in /home/content/r/k/k/rkkadmin/html/wp-blog-header.php at line 16
* in /home/content/r/k/k/rkkadmin/html/index.php at line 17