mod_http_xep227: Handle nil/errors opening archive stores This matches how mod_mam opens archive stores. nil can be returned when there is no data in the store yet (it doesn't exist).

module:set_global();

local log = _G.log;

module:add_timer(60-os.date("%S"), function (now)
	log("info", "-- MARK --");
	return 90 - ((now + 30) % 60);
end);