Ajax-pagination plugin not working (WordPress)

Question

How to make pagination without reloading the page?

Used the plugin: https://wordpress.org/plugins/wp-ajax-pagination/

and WordPress pagination the_posts_pagination();

But ajax-pagination still doesn't work for me =(

Plugin settings screenshot:

⠀⠀⠀

category.php file code:

<?php get_header(); ?>

<main class="Main_ContentKg">
<section>
<div class="Block-1">

<?php if ( have_posts() ) : ?>



<?php while ( have_posts() ) : the_post();?> 


    <div class="child-block-1">  // ****** I set this block in plugin settings  ******

<a class ="child_Link_1" href=<?php the_permalink(); ?>> </a>
<img class="child-img-1" src=<?php the_post_thumbnail('post-page'); ?>
<figcaption class ="child-text">

<div class="child-text-center">
<?php the_title();?>
</div>
</figcaption> 

</div>
<?php endwhile; ?>

    </div>


<?php
$pagin_args = array(
  'show_all'     => false, 
  'end_size'     => 2,     
  'mid_size'     => 1,     
  'prev_next'    => false,  
  'prev_text'    => __('« Next'),
  'next_text'    => __('Back »'),
  'add_args'     => false, 
  'add_fragment' => '',     
  'screen_reader_text' => __( 'Posts navigation' ),
);

 ?>

<?php the_posts_pagination($pagin_args); ?> // ****** Оriginal Wordpress pagination ******

</section>
</main>

<?php endif; ?>

<?php get_sidebar(); ?>
<?php get_footer(); ?>