Error displayed in Admin mode when cliking on a course (with debugging option ON) in Moodle

[dna77]

We are using Moodle 4.4.3 with OBF 1.0.11

In the admin role, when I click on a course, I have the below message displayed on the top of the screen:

Navigation node add_before: Reference node not found backup, options: editsettings coursecompletion users unenrolself filtermanagement coursereports gradebooksetup questionbank coursetools 9 coursereuse
line 1105 of /lib/navigationlib.php: call to debugging()
line 413 of /lib/navigationlib.php: call to navigation_node_collection->add()
line 145 of /local/obf/lib.php: call to navigation_node->add_node()
line 85 of /local/obf/lib.php: call to local_obf_add_course_admin_container()
line 5816 of /lib/navigationlib.php: call to local_obf_extend_settings_navigation()
line 4443 of /lib/navigationlib.php: call to settings_navigation->load_local_plugin_settings()
line 843 of /lib/pagelib.php: call to settings_navigation->initialise()
line 972 of /lib/pagelib.php: call to moodle_page->magic_get_settingsnav()
line 395 of /lib/classes/navigation/views/secondary.php: call to moodle_page->__get()
line 218 of /lib/classes/navigation/views/secondary.php: call to core\navigation\views\secondary->load_course_navigation()
line 900 of /lib/pagelib.php: call to core\navigation\views\secondary->initialise()
line 972 of /lib/pagelib.php: call to moodle_page->magic_get_secondarynav()
line 67 of /theme/boost/layout/drawers.php: call to moodle_page->__get()
line 1483 of /lib/outputrenderers.php: call to include()
line 1408 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 307 of /course/view.php: call to core_renderer->header()