If you’re using jtwt plugin to display tweets on your website and there is no tweets instead “No public Twitter message” is displayed it’s time to look for an alternative solutions. Due to the Twitter API ver. 1. depreciation “jtwt.js” stopped working on June, 11. This means any websites or apps that make use of this plugin won’t be able to display recent tweets or to perform any search queries anymore.

Unfortunately there aren’t any javascript-only solutions out there, but here are some alternatives: https://dev.twitter.com/docs/embedded-timelines  and http://wordpress.org/plugins/recent-tweets-widget/