Unknown action

No action responded to pagenavi2. Actions: RSSParser, actions, admin_authorizer, cache_remove, check_code, check_execution_authority, controllers, detail, file_remove, file_writer, form, form_array2string, image_cache, image_nully, image_rotate, index, int_for_time2time, is_mobile?, is_root?, list_by_category, list_by_subcategory, load_config, ml_member_tag, only_tax, params2utf, password_generater, root_authorizer, route2title, send_mail_for_template, set_mobile_header, set_point, staff_authorizer, subtotal_for_items, subtotal_for_items_all, to_sjis, to_utf, user_authorizer, and with_tax