k2 user broke

Notice: Undefined variable: children in /home/bigshot/domains/it.bigshot360.com/public_html/modules/mod_k2_user/helper.php on line 94 Call Stack: 0.0002 686984 1. {main}() /home/bigshot/domains/it.bigshot360.com/public_html/index.php:0 0.1356 15408872 2. JSite->render() /home/bigshot/domains/it.bigshot360.com/public_html/index.php:48 0.1671 17290592 3. JDocumentHTML->render() /home/bigshot/domains/it.bigshot360.com/public_html/includes/application.php:272 0.1671 17290592 4. JDocumentHTML->_renderTemplate() /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/document/html/html.php:433 0.1748 17520008 5. JDocumentHTML->getBuffer() /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/document/html/html.php:655 0.1748 17520944 6. JDocumentRendererModules->render() /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/document/html/html.php:371 0.1811 17547464 7. JDocumentRendererModule->render() /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/document/html/renderer/modules.php:39 0.1813 17552464 8. JModuleHelper::renderModule() /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/document/html/renderer/module.php:106 0.1843 17659408 9. include('/home/bigshot/domains/it.bigshot360.com/public_html/modules/mod_k2_user/mod_k2_user.php') /home/bigshot/domains/it.bigshot360.com/public_html/libraries/joomla/application/module/helper.php:175 0.1883 17763576 10. modK2UserHelper::getMenu() /home/bigshot/domains/it.bigshot360.com/public_html/modules/mod_k2_user/mod_k2_user.php:67

As you can see it is an error connected with the mod_k2_user module - it is not our module so please contact with the K2 team.