We noticed tonight that the videos are not displaying.
At one point the following error message was showing: Whoops, your server is having trouble connecting to the WPMU DEV API! If this problem continues, please contact your host and ask them to "make sure php and any firewall is configured to allow an HTTP GET call via curl or fsockopen to https://premium.wpmudev.org/video-api-register.php.
This went without us making any changes.
Now the videos seem to be displaying your website rather than the videos.
Sometimes it displays a message similar to the following: Hi, my name is Ashok and I'm a WPMU DEV support hero. Unfortunately, we've been unable to find what you were looking for. Don't worry though you can search for whatever you want or perhaps one of these links will help.
Our site is primaryblogger.co.uk.
Thanks for your help.