Undefined index: port OAuth.php:385

Trace:

getTweets, StormTwitter->getTweets, StormTwitter->oauthGetTweets, TwitterOAuth->get, TwitterOAuth->oAuthRequest, OAuthRequest->to_url, OAuthRequest->get_normalized_http_url

Entered all the necessary data in the Settings panel. Didn’t see anything there for a port number. I did an echo check on the port variable from it’s array, it returned blank.

Am I missing something obvious?

https://wordpress.org/plugins/oauth-twitter-feed-for-developers/