Please change the site URL and WordPress URL from WP-Admin > Settings > General. It is currently set to the IP address of the Droplet. I’m not sure if this has something to do with the Twitter feed.

Also ensure the permissions are set correctly:

chown -R www-data:www-data /var/www

How did you verify that CURL is enabled? Did you check the phpinfo() page?

I Changed the public $host = “https://api.twitter.com/1.*/”; into public $host = “https://api.twitter.com/1.1/”; now it’s working properly. thank you all.