I have a desire to craft a picture slideshow for my website. With the intention of showcasing them in a slideshow format, I’ve embedded linked images. Regrettably, the functionality isn’t performing as anticipated.
appreciate your support as soon as possible

<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-100" src="1.pgn" alt="First slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="2.pgn" alt="Second slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="3.pgn" alt="Third slide">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleIndicators" 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="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

I have tried to put all images in one directory

<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
    <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-100" src="1.pgn" alt="First slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="2.pgn" alt="Second slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="3.pgn" alt="Third slide">
    </div>
  </div>
  <a class="carousel-control-prev" href="#carouselExampleIndicators" 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="#carouselExampleIndicators" role="button" data-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

>Solution :

Upon reviewing your code, I’ve identified that the image formats are incorrect. Aside from this issue, everything else appears to be in order. Please modify all picture extensions to PNG.

<div class="carousel-inner">
    <div class="carousel-item active">
      <img class="d-block w-100" src="1.png" alt="First slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="2.png" alt="Second slide">
    </div>
    <div class="carousel-item">
      <img class="d-block w-100" src="3.png" alt="Third slide">
    </div>