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 PLR9X7o1Uc9yKzt-2LH79EJQiGA10IJPRJ
belongs to a playlist. Check the FAQ
of the plugin or send error messages to support