Thursday Night Open Stage – February 12, 2015

Error type: "Bad Request". Error message: "Bad Request" Domain: "usageLimits". Reason: "keyInvalid".

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

Check in YouTube if the id PL1RLRB6r5imst99Rn28ZIwO0uwNjL5n4v belongs to a playlist. Check the FAQ of the plugin or send error messages to support.