No youtube playlist videos to be found - maybe API key not set ? This is the feed - https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&playlistId=PLD8mFSPlOgcwQDEesSAPTlvmARITguGDs&key=AIzaSyDhdgMJys0MU9dBeOWhcpMHBcN_AhuBcDE&maxResults=50
The playlist identified with the request's playlistId parameter cannot be found.