Metrothemes Applause theme faulty

I’ve been using my wordpress theme supplied by Metrothemes. Been fine for years however, as soon as my support stopped my videos now don’t play. I’m doing what I’ve always been doing but now it decides not to p[lay them. Just put the URL of the video on Youtube in a field in the theme and press update they say. Well it did work but now it doesn’t.

As you can guess I’m not that happy about having to pay for more support when I know it’s not my fault. Anyone here who can shed some light on this?