The block ajax_marking does not define the standard capability block/ajax_marking:addinstance
line 598 of /blocks/moodleblock.class.php: call to debugging()
line 576 of /blocks/moodleblock.class.php: call to block_base->has_add_block_capability()
line 236 of /lib/blocklib.php: call to block_base->user_can_addto()
line 1843 of /lib/blocklib.php: call to block_manager->get_addable_blocks()
line 1007 of /lib/blocklib.php: call to block_add_block_ui()
line 353 of /lib/blocklib.php: call to block_manager->ensure_content_created()
line 6 of /theme/anomaly/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 ? of unknownfile: call to core_renderer->header()
line 1439 of /lib/setuplib.php: call to call_user_func_array()
line 48 of /question/edit.php: call to bootstrap_renderer->__call()
line 48 of /question/edit.php: call to bootstrap_renderer->header()