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Error type: "Forbidden". Error message: "The request cannot be completed because you have exceeded your quota." Domain: "youtube.quota". Reason: "quotaExceeded".

Did you added your own Google API key? Look at the help.

Check in YouTube if the id UCQE8aGEb-t6o9-Q1sZUE48A belongs to a channelid. Check the FAQ of the plugin or send error messages to support.