Hook callback definition contains invalid 'callback' class name in 'local_titusassistai'. Callback class 'local_titusassistai\local\hooks\output\after_standard_main_region_html_generation' not found.

• line 229 of /lib/classes/hook/manager.php: call to debugging()
• line 189 of /lib/classes/hook/manager.php: call to core\hook\manager->is_callback_valid()
• line 304 of /lib/classes/hook/manager.php: call to core\hook\manager->getListenersForEvent()
• line 615 of /lib/classes/output/core_renderer.php: call to core\hook\manager->dispatch()
• line 219 of /lib/mustache/src/Mustache/Context.php: call to core\output\core_renderer->standard_after_main_region_html()
• line 138 of /lib/mustache/src/Mustache/Context.php: call to Mustache_Context->findVariableInStack()
• line 168 of /var/moodledata/10norse.45.testing.moodle.tituslearning.com/localcache/mustache/1773052386/norse/__Mustache_cfa0bbfd8856a10fa4022f93c47fd956.php: call to Mustache_Context->findDot()
• line 67 of /lib/mustache/src/Mustache/Template.php: call to __Mustache_cfa0bbfd8856a10fa4022f93c47fd956->renderInternal()
• line 192 of /lib/classes/output/renderer_base.php: call to Mustache_Template->render()
• line 163 of /theme/norse/layout/drawers.php: call to core\output\renderer_base->render_from_template()
• line 972 of /lib/classes/output/core_renderer.php: call to include()
• line 888 of /lib/classes/output/core_renderer.php: call to core\output\core_renderer->render_page_layout()
• line 51 of /local/titusecommerce/checkout.php: call to core\output\core_renderer->header()