Tipo de error: "Forbidden". Mensaje de error: "Access Not Configured. YouTube Data API has not been used in project 167254547646 before or it is disabled. Enable it by visiting then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry." Dominio: "usageLimits". Razón: "accessNotConfigured".

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

Comprueba en YouTube si el id PLIkrn3h4JmmpnCXV9vk3jB6qDqN6XjjMB corresponde a un playlist. Revise el FAQ del plugin or envíe los mensajes de error a support.