... and the issue is back from last month, again:
20:10:56 [Composer\Downloader\TransportException] 20:10:56 The "https://packagist.org/p/provider-2017%2462534e44c7215c59b58e5ae6fba06ba61a46d713507c3a58bd130e1940517d96.json" file could not be downloaded (HTTP/1.1 404 Not Found)
See also: