Callback before_standard_html_head in availability_examus component should be migrated to new hook callback for core\hook\output\before_standard_head_html_generation
line 7468 of /lib/moodlelib.php: call to debugging()
line 7535 of /lib/moodlelib.php: call to {closure}()
line 73 of /lib/classes/hook/output/before_standard_head_html_generation.php: call to get_plugins_with_function()
line 718 of /lib/outputrenderers.php: call to core\hook\output\before_standard_head_html_generation->process_legacy_callbacks()
line 219 of /lib/mustache/src/Mustache/Context.php: call to core_renderer->standard_head_html()
line 138 of /lib/mustache/src/Mustache/Context.php: call to Mustache_Context->findVariableInStack()
line 31 of data/localcache/mustache/1753942874/boost/__Mustache_73560842f9d6c5bc337558df4f13b989.php: call to Mustache_Context->findDot()
line 13 of data/localcache/mustache/1753942874/boost/__Mustache_4aa1b29b14b62e9eb02cc88038b79589.php: call to __Mustache_73560842f9d6c5bc337558df4f13b989->renderInternal()
line 66 of /lib/mustache/src/Mustache/Template.php: call to __Mustache_4aa1b29b14b62e9eb02cc88038b79589->renderInternal()
line 216 of /lib/outputrenderers.php: call to Mustache_Template->render()
line 107 of /theme/boost/layout/drawers.php: call to renderer_base->render_from_template()
line 1485 of /lib/outputrenderers.php: call to include()
line 1410 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()
line 72 of /course/index.php: call to core_renderer->header()
