If you want to reset your WIFI settings because you want to use a different SSID, you can use the link *http://daytopper.local/reset-wifi to reset the WIFI settings. After you reset the WIFI settings, you can follow the first setup article to connect the module to your WIFI network again.
*) if you cannot connect to http://daytopper.local, you can use your ip instead. e.g. http://module-ip.local