[Web API issue] 502 Server Error when unfollowing playlists quickly

[apibugsreporting]

I have a NodeJS script (attached) to unfollow multiple playlists quickly. It retrieves the playlists of the user, and then unfollows them by ID. However, I obtain lots of 502 server errors when setting a low time between playlists unfollowed (e.g., 10 milliseconds).

This is the error obtained:

{

    "error": {

        "status": 502,

        "message": "Could not unfollow playlist"

    }

}