404. That’s an error.
The requested URL /feeds/api/playlists/SudaaO1h77XxJSTD_VrXRYxiO3HmHl7- was not found on this server. That’s all we know.
/feeds/api/playlists/SudaaO1h77XxJSTD_VrXRYxiO3HmHl7-