Simply add this function after ending while loop.
if (function_exists("cpt_pagination")) {
cpt_pagination($query);
}
Also, add this function into the functions.php file.
function cpt_pagination($query){
global $loop;
$query = $query ? $query : $loop;
$big = 999999999;
$paginate = paginate_links( array(
'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
'type' => 'array',
'total' => $query->max_num_pages,
'format' => '?paged=%#%',
'current' => max( 1, get_query_var('paged') ),
// 'prev_previous' =>('← Older posts'),
// 'prev_next' => ( 'Newer posts →' ),
// 'prev_text' => __('«'),
'prev_text' => __(''),
// 'next_text' => __('»'),
'next_text' => __(''),
));
if ($query->max_num_pages > 1) :
?>
<div class="paginate">
<ul class="pagination">
<?php
foreach ( $paginate as $page ) {
echo '<li>' . $page . '</li>';
}
?>
</ul>
</div>
<?php
endif;
}