Pagination and custom WP Query - php

Question

I allow my visitors to order posts by a price filter on my category.php. They have 2 options: "Max Price" and "Min Price". When a filter is selected the query works fine. Pagination appears but it doesn't work correctly. It always shows the first post on my "page/2/", "page/3/"...
I don't know why it doesn't work Can you help me?
<?php get_header(); ?>
<section id="primary" class="content-area">
<main id="main" class="site-main" role="main">
<header class="pages-header col-md-12">
<h1 class="page-title"> <?php single_cat_title(); ?> </h1>
<?php echo get_field('petite_description_cat', 'category_' . $cat);?>
</header><!-- .page-header -->
<?php
//Display form for the query
if($_GET['minprice'] && !empty($_GET['minprice']))
{
$minprice = $_GET['minprice'];
} else {
$minprice = 0;
}
if($_GET['maxprice'] && !empty($_GET['maxprice']))
{
$maxprice = $_GET['maxprice'];
} else {
$maxprice = 999999;
}
?>
<form method="get">
<label>min:</label>
<input type="number" name="minprice" value="<?php echo $minprice; ?>">
<label>max:</label>
<input type="number" name="maxprice" value="<?php echo $maxprice; ?>">
<button type="submit" name="">Filter</button>
</form>
<?php
// set up or arguments for our custom query
$paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1;
$args = array(
'cat' => $cat,
'post_type' => 'post',
'posts_per_page' => 5,
'meta_query' => array(
array(
'key' => 'prix',
'type' => 'NUMERIC',
'value' => array($minprice, $maxprice),
'compare' => 'BETWEEN'
),
)
);
// create a new instance of WP_Query
$the_query = new WP_Query($args);
?>
<?php if ( $the_query->have_posts() ) : while ( $the_query->have_posts() ) : $the_query->the_post(); // run the loop ?>
<?php
//on récupère le template
get_template_part( 'content-category', get_post_format() ); ?>
<?php endwhile; ?>
<?php if ($the_query->max_num_pages > 1) { // check if the max number of pages is greater than 1 ?>
<div class="clearfix"></div>
<?php //pagination
bootstrap_pagination();?>
<?php } ?>
<?php else: ?>
<?php get_template_part( 'no-results', 'archive' ); ?>
<?php endif; ?>
<?php
wp_reset_query();
//display description only on page 1
$page = (get_query_var('paged')) ? get_query_var('paged') : 1;
if ($page ==1) { echo category_description ( get_category_by_slug ( 'category-slug' )-> term_id );
} ?>
</main><!-- #main -->
</section><!-- #primary -->
<?php get_footer(); ?>

Answer 1

Solution is only this in $args !
'paged' => $paged,