Get someone's last tweet

[SardanDev]

Hello, I tried to retrieve the last tweet of sb with your API but it returns me an error like I don't have enough roit yet I have a dev account on Twitter. Can you help me please, thx

const { TwitterApi } = require('twitter-api-v2');

function NotificationsTwitter(client) {
    const twitterClient = new TwitterApi('API_CODE');
const readOnlyClient = twitterClient.readOnly;

// Play with the built in methods
const user = readOnlyClient.v2.userByUsername('USERNAME')
.then((user) => {
    let tweetChannelId = 'CHANNEL_ID';
    let lastTweetId = '';
	console.log('NotifTwitter')
    console.log(user)
 
    function checkNewTweets() {
        twitterClient.get('statuses/user_timeline.json', { screen_name: 'USERNAME', count: 1 }, function (error, tweets, response) {
            //console.log(tweets, response)
            if (!error) {
                const latestTweet = tweets[0];
                if (latestTweet.id_str !== lastTweetId) {
                    const tweetUrl = `https://twitter.com/${latestTweet.user.screen_name}/status/${latestTweet.id_str}`;
                    const tweetChannel = client.channels.cache.get(tweetChannelId);
                    tweetChannel.send(tweetUrl);
                    lastTweetId = latestTweet.id_str;
                }
            }
        });
    }checkNewTweets();
  }) 
  .catch((error) => {
    console.error(error);
  });
}