Autoplay
Autoplay is a Premium music feature. A member with Manage Channels can use /autoplay accion:on, off or status for the server.
When enabled, Kakashi can continue the music session by selecting related tracks as the normal queue runs out. It uses the server music state, so this is an administrative toggle rather than a personal preference for one listener.
If /autoplay ... on is denied, check both the member permission and /musicstatus for an eligible Premium grant. status is useful even when you only want to see whether the feature is currently enabled.