How to properly display the carousel?

Question

Django

Unable to display Bootstrap carousel

<div class="bd-example">
  <div id="carouselExampleCaptions" class="carousel slide" data-ride="carousel">
    <ol class="carousel-indicators">
      <li data-target="#carouselExampleCaptions" data-slide-to="0" class="active"></li>
      <li data-target="#carouselExampleCaptions" data-slide-to="1"></li>
      <li data-target="#carouselExampleCaptions" data-slide-to="2"></li>
      <li data-target="#carouselExampleCaptions" data-slide-to="3"></li>
    </ol>

    <div class="carousel-inner">
      {% for post in posts %}
      <div class="carousel-item active">
        <img src="{{ post.image.url }}" class="d-block w-100" alt="...">
        <div class="carousel-caption d-none d-md-block">
          <h5>{{ post.title|truncatewords:9 }}</h5>
            <p>{{ post.body|truncatewords:15 }}</p>
        </div>
      </div>
      {% endfor %}
      
    </div>

    <a class="carousel-control-prev" href="#carouselExampleCaptions" role="button" data-slide="prev">
      <span class="carousel-control-prev-icon" aria-hidden="true"></span>
      <span class="sr-only">Previous</span>
    </a>
    <a class="carousel-control-next" href="#carouselExampleCaptions" role="button" data-slide="next">
      <span class="carousel-control-next-icon" aria-hidden="true"></span>
      <span class="sr-only">Next</span>
    </a>
  </div>
</div>

Next, Previous buttons do not work
Posts are superimposed on each other as shown in the photo

Answer 1

An example of a working carousel
Try to simply replace the pictures with your own and run

<div class="carousel slide" data-ride="carousel" id="slides">
    <ul class="carousel-indicators">
      <li data-target="#slides" data-slide-to="0" class="active"></li>
      <li data-target="#slides" data-slide-to="1"></li>
      <li data-target="#slides" data-slide-to="2"></li>
      <li data-target="#slides" data-slide-to="3"></li>
    </ul>
    <div class="carousel-inner">
      <div class="carousel-item active">
        <img src="img/slider/1.jpg">
        <div class="carousel-caption">
          <h1 class="display-2">Программирование</h1>
          <h3>Научитесь программировать</h3>
          <button type="button" class="btn btn-ounline btn-lg btn-white">
            Подробнее
          </button>
          <button type="button" class="btn btn-warning btn-lg">
            О нас
          </button>
        </div>
      </div>

      <div class="carousel-item">
        <img src="img/slider/2.jpg">
        <div class="carousel-caption">
          <div class="container-fluid">
            <div class="row juistify-content-start">
              <h1 class="design__headline"><span>3D</span> Design</h1>			
            </div>	
          </div>
          
      
        </div>
      </div>
      <div class="carousel-item">
        <img src="img/slider/3.jpg">
      </div>
      <div class="carousel-item">
        <img src="img/slider/4.jpg">
      </div>
    </div>
  </div> <!--end карусель-->