title: LogicException: Host can not be empty
body: <p>Working with Laravel 6, PHP 7.4, and Mailgun. I am testing routes with Mailgun and when trying to create a client and show my routes I receive this error: LogicException - Host can not be empty.</p>
  
  <p>I here is the snippit for creating the client</p>
  
  <pre><code># Instantiate the client.
  $mgClient = Mailgun::create('PRIVATE_API_KEY', 'https://API_HOSTNAME');
  
  # Issue the call to the client.
  $result = $mgClient-&gt;routes()-&gt;index();
  </code></pre>