Callback before_footer in local_showusername_watermark_full component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
line 7229 of /public/lib/moodlelib.php: call to debugging()
line 7296 of /public/lib/moodlelib.php: call to {closure}()
line 71 of /public/lib/classes/hook/output/before_footer_html_generation.php: call to get_plugins_with_function()
line 974 of /public/lib/classes/output/core_renderer.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
line 148 of /public/index.php: call to core\output\core_renderer->footer()