Notice: Undefined index: sng_tags in context_admin_termref_create_node_get_children() (line 36 of context_admin/plugins/context_admin/termref_create_node.inc)

I get this on all pages.
I enabled a features module.

here is the backtrace:

context_admin_termref_create_node_get_children(Array, 'termref_create_node') plugins.inc:281
ctools_get_plugins('context_admin', 'context_admin', '') plugins.inc:814
ctools_plugin_load_function('context_admin', 'context_admin', '', 'form alter') context_admin.module:165
context_admin_plugin_callback_invoke('form alter', 'alter', NULL, Array, Array, 'user_login_block')
call_user_func_array('context_admin_plugin_callback_invoke', Array) context_admin.module:201
context_admin_form_alter(Array, Array, 'user_login_block', NULL) module.inc:1101
drupal_alter(Array, Array, Array, 'user_login_block') form.inc:1089
drupal_prepare_form('user_login_block', Array, Array) form.inc:340
drupal_build_form('user_login_block', Array) form.inc:131
drupal_get_form('user_login_block') block.inc:509
ctools_user_login_pane_render('user-login', Array, Array, NULL, '') content.inc:280
ctools_content_render('block', 'user-login', Array, Array, Array, Array) panels_renderer_standard.class.php:547
panels_renderer_standard->render_pane_content(Object) panels_renderer_standard.class.php:482
panels_renderer_standard->render_pane(Object) panels_renderer_standard.class.php:461
panels_renderer_standard->render_panes() panels_renderer_standard.class.php:389
panels_renderer_standard->render_layout() panels_renderer_standard.class.php:360
panels_renderer_standard->render() panels.module:741
panels_display->render(Object) panels.module:1104
panels_render_display(Object, Object) panel_context.inc:328
panels_panel_context_render(Object, Array, Array) context-task-handler.inc:121
ctools_context_handler_render_handler(Array, Array, Object, Array, Array) context-task-handler.inc:44
ctools_context_handler_render(Array, Array, Array, Array) page.inc:322
page_manager_page_execute('panels_customerror_403')
call_user_func_array('page_manager_page_execute', Array) menu.inc:517
menu_execute_active_handler() index.php:21