DB1: Business Partner B1 audio tracks

Navigation node add_before: Reference node not found participants, options: 147 148 home calendar

line 958 of /lib/navigationlib.php: call to debugging()
line 4061 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 1374 of /lib/outputrenderers.php: call to include()
line 1304 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 1941 of /lib/setuplib.php: call to core_renderer->header()
line 158 of /mod/url/locallib.php: call to bootstrap_renderer->__call()
line 258 of /mod/url/locallib.php: call to url_print_header()
line 105 of /mod/url/view.php: call to url_print_workaround()

Dooc. B1