I have tried the SMS quickstart. I followed the Javascript example. But I get an error: Resource Not Available when trying to login in to ringcentral.

I am using my normal login account for the test app. It is in the sandbox. Below is the code.

const RC = require('@ringcentral/sdk').SDK

console.log("hello");

RECIPIENT = '716510xxx'

RINGCENTRAL_CLIENTID = 'qnxxxxx'

RINGCENTRAL_CLIENTSECRET = '3ec_nqkXQxxxx'

RINGCENTRAL_SERVER = 'https://platform.devtest.ringcentral.com/'

RINGCENTRAL_USERNAME = '+17168375727'

RINGCENTRAL_PASSWORD = 'xxxx'

RINGCENTRAL_EXTENSION = '102'

var rcsdk = new RC( {server: RINGCENTRAL_SERVER, clientId: RINGCENTRAL_CLIENTID, clientSecret: RINGCENTRAL_CLIENTSECRET} );

var platform = rcsdk.platform();

platform.login( {username: RINGCENTRAL_USERNAME, password: RINGCENTRAL_PASSWORD, extension: RINGCENTRAL_EXTENSION} )

platform.on(platform.events.loginSuccess, function(e){

  console.log("logged in");  

  read_extension_phone_number()

});

Error is gotten at Console.log("Logged in")

Below is the error I get: