Unable to load second page for search results

UPDATE
I have added the below php code snippet into my mu-plugins folder to fix the issue. However, is there a permanent fix from 8theme developer side? Would prefer to not add any custom code php code on my side.

<?php
/**
 * Plugin Name: Arturo – Fix Search Pagination (&#038; / #038;) for WooCommerce
 * Description: Normalizes pagination/querystring ampersands so page 2+ of product searches don’t 404.
 * Version: 1.0
 */

/**
 * Normalize URLs generated by WordPress pagination helpers.
 */
function arturo_normalize_ampersands($value) {
    $replacer = function($url) {
        // Replace both the entity and the broken fragment with a real '&'
        $url = str_replace(array('&#038;', '#038;'), '&', $url);
        // Guard: fix cases like "?...??#038;" or "?...&#038;#038;"
        $url = preg_replace('/(\?[^#]*)#038;/', '$1&', $url);
        return $url;
    };

    if (is_array($value)) {
        foreach ($value as &$v) { $v = $replacer($v); }
        return $value;
    }
    return $replacer($value);
}
add_filter('get_pagenum_link', 'arturo_normalize_ampersands', 99);
add_filter('paginate_links',    'arturo_normalize_ampersands', 99);

/**
 * Front-end safety net:
 * – Fix any bad links produced/modified by AJAX or infinite scroll
 * – Keep fixing as new nodes are injected
 */
add_action('wp_footer', function () { ?>
<script>
(function () {
  function fixLinks(root) {
    var as = (root||document).querySelectorAll('a[href*="#038;"]');
    for (var i = 0; i < as.length; i++) {
      var href = as[i].getAttribute('href');
      if (!href) continue;
      as[i].setAttribute('href', href.replace(/#038;/g, '&'));
    }
  }
  // initial pass
  fixLinks(document);
  // keep fixing as infinite scroll / AJAX adds more nodes
  new MutationObserver(function (muts) {
    for (var m of muts) {
      for (var n of m.addedNodes) {
        if (n.nodeType === 1) fixLinks(n);
      }
    }
  }).observe(document.body, { childList: true, subtree: true });
})();
</script>
<?php }, 100);

/**
 * (Optional) Prevent over-eager canonical redirects from interfering on search pages.
 */
add_filter('redirect_canonical', function ($redirect_url, $requested) {
    if (is_search()) return false;
    return $redirect_url;
}, 10, 2);