title: Dingo APi error message
body: <p>I am trying to <a href="https://laravel.com/docs/5.5/mail#previewing-mailables-in-the-browser" rel="nofollow noreferrer">render</a> my mailable in the browser in order to check the content. However I'm getting this message <code>{"message":"sha1() expects parameter 1 to be string, object given","status_code":500}</code></p>
  
  <p><a href="https://gitlab.com/snippets/1695247" rel="nofollow noreferrer">My code snippet</a></p>
  
  <p>I am running Dingo/Api on my page as well an I think it's somehow connected with it. </p>
  
  <p>Can you please give me the suggestion why am I getting this message instead of rendering mailable?</p>
  
  <p>Thank you</p>