Cannot access channel ID, this is feed - https://www.googleapis.com/youtube/v3/search?q=UCqtbBsXZLO8-HG7tAve054g&key=AIzaSyCOIZpq75uhgp0Rtw21KgsmTJLdkR3uRqw&type=channel&part=snippet
No videos to be found - https://www.googleapis.com/youtube/v3/channels?key=AIzaSyCOIZpq75uhgp0Rtw21KgsmTJLdkR3uRqw&id=UCqtbBsXZLO8-HG7tAve054g&part=snippet&maxResults=50
Galerie sample_youtube_user_channel does not seem to have any videos.