The block site_main_menu does not define the standard capability block/site_main_menu:myaddinstance

line 598 of /blocks/moodleblock.class.php: call to debugging()

line 571 of /blocks/moodleblock.class.php: call to block_base->has_add_block_capability()

line 1082 of /lib/blocklib.php: call to block_base->user_can_addto()

line 1043 of /lib/blocklib.php: call to block_manager->user_can_delete_block()

line 248 of /blocks/moodleblock.class.php: call to block_manager->edit_controls()

line 953 of /lib/blocklib.php: call to block_base->get_content_for_output()

line 1005 of /lib/blocklib.php: call to block_manager->create_block_contents()

line 353 of /lib/blocklib.php: call to block_manager->ensure_content_created()

line 6 of /theme/base/layout/general.php: call to block_manager->region_has_content()

line 804 of /lib/outputrenderers.php: call to include()

line 734 of /lib/outputrenderers.php: call to core_renderer->render_page_layout()

line 153 of /my/index.php: call to core_renderer->header()