Widget Titles not Appearing

All of my widget titles have disappeared. Just today they were working fine. I’m not sure if this is the cause but the first time I noticed it stopped working was after I installed an Instagram widget called Statigram.

Here is my site-
http://www.globalconnectweb.com/mysundaydress

Please help me figure out how to get them to all appear again! Thanks so much!
-Joelle