I could not get this app to work for some reason.
Instead, I created my own widget from "https://twitter.com/settings/widgets" and then added source to the newly created "Web Content Display" portlet in Liferay. Everything worked just fine.
Great reference at https://vijayanjayaraman.wordpress.com/2015/01/23/how-to-display-twitter-feeds-in-liferay-with-no-development/
Instead, I created my own widget from "https://twitter.com/settings/widgets" and then added source to the newly created "Web Content Display" portlet in Liferay. Everything worked just fine.
Great reference at https://vijayanjayaraman.wordpress.com/2015/01/23/how-to-display-twitter-feeds-in-liferay-with-no-development/