title: What is PBItemCollectionServicer？
body: <p>I searched SO ,find nothing about <code>PBItemCollectionServicer</code>.</p>
  <p>My question become form my app crash(because of memory rise violently), then print:</p>
  <blockquote>
  <p>PBItemCollectionServicer connection disconnected.</p>
  </blockquote>
  <p>The screen shot:</p>
  <p><a href="https://i.stack.imgur.com/ZdZrj.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZdZrj.jpg" alt="enter image description here" /></a></p>
  <p>I have no idea about the <code>PBItemCollectionServicer</code>, whats mean of that?<br />
  and how does it work?<br />
  why it print here?
  Is it relate to my app crash?</p>
  <hr />
  <p><strong>Edit -1</strong></p>
  <p>As Nir's comment, he suspect if I use the under link framework.</p>
  <p><a href="https://github.com/JaviSoto/iOS10-Runtime-Headers/tree/master/PrivateFrameworks/Pasteboard.framework" rel="nofollow noreferrer">https://github.com/JaviSoto/iOS10-Runtime-Headers/tree/master/PrivateFrameworks/Pasteboard.framework</a></p>
  <p>No , I didn't, I searched my project with no result:</p>
  <p><a href="https://i.stack.imgur.com/mwGlS.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mwGlS.jpg" alt="enter image description here" /></a></p>