[Plugin: Twitter Feed for WordPress] Username does not work

My template code that does NOT work: <?php echo do_shortcode(‘[twitter-feed username=”AFortiori4U” mode=”public” num=”3″ img=”no” timeline=”no” followbutton=”no” followlink=”no”]’); ?>

Twitter profile : https://twitter.com/AFortiori4U

BUT with other username it works. Howcome this username isn’t that extraordinary is it?

Grtz,
Bert

http://ww.wp.xz.cn/extend/plugins/wp-twitter-feed/