title: GitKraken : fetching pull requests failed
body: <p>I've just installed a free version of GitKraken and logged myself on github.
  The software is working but when I pull a branch, I've always a red warning popup telling me "fetching pull requests failed"</p>
  
  <p><a href="https://i.stack.imgur.com/VeXyc.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VeXyc.png" alt="enter image description here"></a></p>
  
  <p>Have you ever experienced that? Did I miss something in the configuration?</p>
  
  <p>PS: my repositories are private</p>