title: E503 Error found when publishing NPM. How could i fix it?
body: <p>I got this error when I tried to run npm publish on my project.</p>
  <p><code>npm ERR! code E503</code></p>
  <p><code>npm ERR! 503 Service Unavailable - PUT https://registry.npmjs.org/sakibb/sakibbb - Service Unavailable</code></p>
  <p><strong>NB: I already followed this instruction video but still got the same result:</strong></p>
  <p><a href="https://www.youtube.com/watch?v=rTsz09zRuTU" rel="nofollow noreferrer">Instruction video</a></p>