Trying to get property of non-object in Navis Media Credit

> **Notice:** Trying to get property of non-object in **/nas/wp/www/cluster-2755/wcij/wp-content/themes/largo/lib/navis-media-credit/navis-media-credit.php** on line **17**

This is output at the top of div.entry-content.clearfix of posts that have a featured image set with a media credit. 

Example post:

- http://wcij.wpengine.com/2014/02/sex-offender-awaits-second-chance/ < set featured image, media credit
- http://wcij.wpengine.com/2014/02/state-overlooks-past-hires-accenture/ < automatic featured image, no media credit