Navigation node add_before: Reference node not found participants, options: 12969 12970 12971 12972 12973 13415 13800 13807 13808 13809 13810 13993 13998 13999 14000 14001 14002 14003 14004 14005 14006 14328 14329 14331 14333 14334 14335 14336 home calendar

• line 962 of \lib\navigationlib.php: call to debugging()
• line 4097 of \lib\navigationlib.php: call to navigation_node_collection->add()
• line 400 of \theme\moove\lib.php: call to flat_navigation->add()
• line 282 of \theme\moove\lib.php: call to theme_moove_add_coursesections_to_navigation()
• line 76 of \theme\moove\layout\incourse.php: call to theme_moove_extend_flat_navigation()
• line 1379 of \lib\outputrenderers.php: call to include()
• line 1309 of \lib\outputrenderers.php: call to core_renderer->render_page_layout()
• line 245 of \mod\assign\renderer.php: call to core_renderer->header()
• line 464 of \lib\outputrenderers.php: call to mod_assign_renderer->render_assign_header()
• line 5767 of \mod\assign\locallib.php: call to plugin_renderer_base->render()
• line 675 of \mod\assign\locallib.php: call to assign->view_submission_page()
• line 55 of \mod\assign\view.php: call to assign->view()