Fatal error: Uncaught Error: Class "user" not found in /volume1/web/packages/system/panels/cms/080_users/010_users/edit/lightbox.tpl.php on line 2

Error: Class "user" not found in /volume1/web/packages/system/panels/cms/080_users/010_users/edit/lightbox.tpl.php on line 2

Call Stack:
    0.0276     361824   1. {main}() /volume1/web/packages/system/panels/cms/080_users/010_users/edit/lightbox.tpl.php:0