Using Chrome, I opened the JavaScript Console on the page I was having problems with, and this is what it said:
Failed to load resource: the server responded with a status of 404 (Not Found) http://studio30seven.com/wp-content/themes/vantage/extras/panels-lite/js/tab.js?ver=3.8
Uncaught SecurityError: Blocked a frame with origin "https://widgets.wp.com" from accessing a frame with origin "http://studio30seven.com". The frame requesting access has a protocol of "https", the frame being accessed has a protocol of "http". Protocols must match.
uz.js:91
event.returnValue is deprecated. Please use the standard event.preventDefault() instead. load-scripts.php?c=0&load%5B%5D=jquery-core,jquery-migrate,utils,quicktags,jquery-ui-core,jquery-ui…:4
Uncaught SecurityError: Blocked a frame with origin "https://public-api.wordpress.com" from accessing a frame with origin "http://studio30seven.com".
The frame requesting access has a protocol of "https", the frame being accessed has a protocol of "http". Protocols must match.