Yelp Icon in Top Bar not displaying

Howdy,

Our site was built by a professional designer, and I am tasked with maintaining and providing (relatively uncomplicated) updates.

For The 7 theme, how would I go about changing the icon in the top bar to display the yelp icon next to the other mediums? It currently is an infinity chain, and not the true logo. I have accessed theme options – top bar – social icons…the yelp address is correctly written next to the yelp field…but the icon is wrong.

site: https://www.kristinmullertranscription.com

Thanks!