Locale warning (not fatal) U_USING_FALLBACK_WARNING: Requested locale "zh_TW.UTF-8" not found, locale "zh@collation=stroke" used instead. The most specific locale supported by ICU relatively to the requested locale is "zh_Hant".
line 105 of /lib/classes/collator.php: call to debugging()
line 188 of /lib/classes/collator.php: call to core_collator::ensure_collator_available()
line 263 of /lib/classes/collator.php: call to core_collator::asort()
line 113 of /filter/activitynames/classes/text_filter.php: call to core_collator::asort_objects_by_property()
line 79 of /filter/activitynames/classes/text_filter.php: call to filter_activitynames\text_filter->get_activity_list()
line 43 of /filter/activitynames/classes/text_filter.php: call to filter_activitynames\text_filter->get_cached_activity_list()
line 116 of /filter/classes/text_filter.php: call to filter_activitynames\text_filter->filter()
line 185 of /filter/classes/filter_manager.php: call to core_filters\text_filter->filter_stage_post_clean()
line 231 of /filter/classes/filter_manager.php: call to core_filters\filter_manager->apply_filter_chain()
line 240 of /lib/classes/formatting.php: call to core_filters\filter_manager->filter_text()
line 617 of /lib/weblib.php: call to core\formatting->format_text()
line 845 of /lib/weblib.php: call to format_text()
line 70 of /lib/classes/output/activity_header.php: call to format_module_intro()
line 873 of /lib/pagelib.php: call to core\output\activity_header->__construct()
line 965 of /lib/pagelib.php: call to moodle_page->magic_get_activityheader()
line 156 of /mod/forum/view.php: call to moodle_page->__get()