I noticed the YELP logo link was broken so I easily corrected it by editing the Plugin file - local-market-explorer/modules/yelp.php
Find -
http://media2.px.yelpcdn.com/static/20091130149848283/i/developers/yelp_logo_75x38.png
Replace with-
http://s3-media4.ak.yelpcdn.com/assets/2/www/img/7e704c57a423/developers/yelp_logo_75x38.png
Now it looks much better.