Where am i getting it wrong? Style Text Inputs as Form Controls

Tell us what’s happening:
It seens to be okay but, its not passing the test? why

Your code so far

 <i class="fa fa-form-control">
    <input type="text" placeholder="cat photo URL" required> </li>

    <button type="submit btn btn-primary"><i class="fa fa-paper-plane">Submit</button></li>
  </form>

<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
h2 {
  font-family: Lobster, Monospace;
}

.thick-green-border {
  border-color: green;
  border-width: 10px;
  border-style: solid;
  border-radius: 50%;
}

</style>

<div class="container-fluid">
<div class="row">
  <div class="col-xs-8">
    <h2 class="text-primary text-center">CatPhotoApp</h2>
  </div>
  <div class="col-xs-4">
    <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
  </div>
</div>
<img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
<div class="row">
  <div class="col-xs-4">
    <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
  </div>
  <div class="col-xs-4">
    <button class="btn btn-block btn-info"><i class="fa fa-info-circle"></i> Info</button>
  </div>
  <div class="col-xs-4">
    <button class="btn btn-block btn-danger"><i class="fa fa-trash"></i> Delete</button>
  </div>
</div>
<p>Things cats <span class="text-danger">love:</span></p>
<ul>
  <li>cat nip</li>
  <li>laser pointers</li>
  <li>lasagna</li>
</ul>
<p>Top 3 things cats hate:</p>
<ol>
  <li>flea treatment</li>
  <li>thunder</li>
  <li>other cats</li>
</ol>
<form action="https://freecatphotoapp.com/submit-cat-photo">
  <div class="row">
    <div class="col-xs-6">
      <label><input type="radio" name="indoor-outdoor"> Indoor</label>
    </div>
    <div class="col-xs-6">
      <label><input type="radio" name="indoor-outdoor"> Outdoor</label>
    </div>
  </div>
  <div class="row">
    <div class="col-xs-4">
      <label><input type="checkbox" name="personality"> Loving</label>
    </div>
    <div class="col-xs-4">
      <label><input type="checkbox" name="personality"> Lazy</label>
    </div>
    <div class="col-xs-4">
      <label><input type="checkbox" name="personality"> Crazy</label>
    </div>
  </div>

  <i class="fa fa-form-control">
  <input type="text" placeholder="cat photo URL" required> </li>

  <button type="submit btn btn-primary"><i class="fa fa-paper-plane">Submit</button></li>
</form>
</div>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36.

Challenge: Style Text Inputs as Form Controls

Link to the challenge:

You’ve forgotten to add the form-control class to your input's text field, you’ve instead put the class outside your input element. Also btn btn-primary are to be used in class, not type.