[Script] Let's encrypt for GL.iNet router HTTPs access

GLDDNS seems working correctly, because I have uninstalled luci ddns and enabled it from the normal web interface:

Please run the script again and send me the output via PM.

I sent you the result a few days ago, but now I have resolved it. I made a backup from luci interface, restored the last official firmware, deleted any config files related to ddns from the backup then restored it. I saved my configuration and fixed the ddns issue to use this script