title: Call to undefined method MongoDB\Driver\ReadConcern::isDefault()
body: <p><a href="https://i.stack.imgur.com/KeeOb.png" rel="nofollow noreferrer">I really don't know what the problem is!</a></p>
  
  <pre><code>class RegisterController extends Controller
  {
      public function store(request $request)
      {
  
          $reg = Register::all();
          var_dump($reg);
  </code></pre>
  
  <p>and Register is</p>
  
  <pre><code>class Register extends Moloquent
  {
  
      protected $connection='mongodb';
      protected $collection='registers';
  
  }
  </code></pre>