Unable to download JSON metadata: HTTP Error 503: Service Not Available [Soundcloud]

[NickWinston123]

This error keeps occuring after about 4 - 6 songs get downloaded:
ERROR: Unable to download JSON metadata: HTTP Error 503: Service Not Available (caused by HTTPError()); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

youtube-dl http://soundcloud.com/loudlordbitch --embed-thumbnail -o "%(title)s.%(ext)s" -f mp3 --prefer-ffmpeg --verbose

[download] Downloading video 6 of 10
[soundcloud] loudlordbitch/loud-lord-madhouse: Resolving id
[soundcloud] loudlordbitch/loud-lord-madhouse: Downloading info JSON
[soundcloud] 235317363: Downloading track url
[soundcloud] 235317363: Checking fallback video format URL
[soundcloud] 235317363: Checking http_mp3_128_url video format URL
[soundcloud] 235317363: Downloading thumbnail ...
[soundcloud] 235317363: Writing thumbnail to: Loud Lord _ Madhouse.jpg
[debug] Invoking downloader on u'https://ec-media.sndcdn.com/bmjn7AoYrPzv.128.mp3?f10880d39085a94a0418a7ef69b03d522cd6dfee9399eeb9a522049566fdbd39443b9c288dfa01f961f61fcb6aa0645478d77c502ffd1342fd63b9de29aae773499ac7ff0c'
[download] Destination: Loud Lord _ Madhouse.mp3
[download] 100% of 2.14MiB in 00:00
[ffmpeg] Adding thumbnail to "Loud Lord _ Madhouse.mp3"
[debug] ffmpeg command line: ffmpeg -y -i 'file:Loud Lord _ Madhouse.mp3' -i 'file:Loud Lord _ Madhouse.jpg' -c copy -map 0 -map 1 -metadata:s:v 'title="Album cover"' -metadata:s:v 'comment="Cover (Front)"' 'file:Loud Lord _ Madhouse.temp.mp3'
[download] Downloading video 7 of 10
[soundcloud] loudlordbitch/loud-lord-plug-city: Resolving id
[soundcloud] loudlordbitch/loud-lord-plug-city: Downloading info JSON
[soundcloud] 235324359: Downloading track url
ERROR: Unable to download JSON metadata: HTTP Error 503: Service Not Available (caused by HTTPError()); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 371, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1935, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/local/lib/python2.7/urllib2.py", line 437, in open
response = meth(req, response)
File "/usr/local/lib/python2.7/urllib2.py", line 550, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/local/lib/python2.7/urllib2.py", line 475, in error
return self._call_chain(_args)
File "/usr/local/lib/python2.7/urllib2.py", line 409, in _call_chain
result = func(_args)
File "/usr/local/lib/python2.7/urllib2.py", line 558, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

anthony@AnthonyUbuntu:~/Music/LoudLord$ youtube-dl -v
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.04.05
[debug] Python version 2.7.9 - Linux-4.2.0-30-generic-x86_64-with-debian-jessie-sid
[debug] exe versions: avconv 11.3-6, avprobe 11.3-6, ffmpeg N-79139-gde1a0d4, ffprobe N-79139-gde1a0d4, rtmpdump 2.4
[debug] Proxy map: {}
Usage: youtube-dl [OPTIONS] URL [URL...]

[NickWinston123]

@dstftw after i waited for a bit the issue stopped