title: Structured data says "The attribute publisher.itemtype has an invalid value."
body: <p>I am doing structured data for my website articles. for that, I am using a JSON-LD, made using Google Markup Helper and also added some attributes to remove errors. Now, there is only one error </p>
  
  <blockquote>
    <p>The attribute publisher.itemtype has an invalid value. </p>
  </blockquote>
  
  <p>I also have different structured data for my organization. But, it does not accept that value, also. Here is one of the article code I'm using</p>
  
  <pre class="lang-json prettyprint-override"><code>{
  "@context" : "http://schema.org",
  "@type" : "Article",
  "name" : "Registration and Expiration Date in PHP and MySQL",
  "image" : "https://i0.wp.com/technopoints.co.in/wp-content/uploads/2018/07/Expiration.jpg?resize=900%2C506&amp;ssl=1",
  "articleBody" : "Hey Technoz, In this tutorial we are going to learn how to create automatic registration and expiration date in php ...",
  "url" : "https://technopoints.co.in/expiration-date-in-php/",
  "author" : "Ashish Joshi",
  "datePublished" : "01/07/2018",
  "headline" : "Registration and Expiration Date in PHP and MySQL",
  "publisher" : "Softglobe Technologies"
  }
  </code></pre>
  
  <p>and following is the organization makup code. It is error free.</p>
  
  <pre class="lang-json prettyprint-override"><code>{"@context":"https:\/\/schema.org","@type":"Organization","url":"https:\/\/technopoints.co.in\/","sameAs":["https:\/\/www.facebook.com\/technopoints.co.in","https:\/\/plus.google.com\/116699158294208258487"],"@id":"https:\/\/technopoints.co.in\/#organization","name":"Softglobe Technologies","logo":"https:\/\/technopoints.co.in\/wp-content\/uploads\/2017\/12\/iconnew.png"}
  </code></pre>