facebook feed disappeared - can someone help

Hi there My facebook feed which was working has disappeared off my site - has facebook or perch changed something - here is the code ? <div class="fb-like-box" width="100%" data-href="https://www.facebook.com/discodtours" data-colorscheme="light" data-show-faces="true" data-header="true" data-stream="true" data-show-border="true"></div>