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=PLyp1C7YXOjpCsqq21MWA9300BA5upU3t0&key=AIzaSyDfDDHWTqJ6iOcASL3wLcpTvPWjmC-NnVk&maxResults=50

The request cannot be completed because you have exceeded your quota.