Error 403: Requests from referer https://www.googleapis.com/youtube/v3/channels?part=id,snippet,contentDetails&id=UCSxNDaM9a20epst3XmqFPCw&key=AIzaSyBiXEqY-DcdCyjRVIFVDH97ehDTIhlyM3Y are blocked..

Domain code: global
Reason code: forbidden

Error: No videos found.

Make sure this is a valid channel ID and that the channel has videos available on youtube.com.