Breadcrubs not changing category

Hello,
I tried to find my question in the forum, if i missed an answer pleas redirect me to the post. Sometimes it is difficult to search when english is not your native language.
Ok question:
I have one product in two categories. But i dont want de breadcrumb to change! Ik want to choose which categorie is most important to that product, and when i navigate to that product via the less important categorie, i don't want the breadcrumb to change. If i remove the cpath in my url the breadcrumb is ok.

https://www.domak.nl/onderbroeken-heren/blauwe-boxershorts?cPath=8&
https://www.domak.nl/onderbroeken-heren/blauwe-boxershorts

I'm using CEON's fantastics uri mapping and that affected the code.
I think in know where to change the code, but i dont know how to change te code:
/override/init_add_crumbs

<?php

/**

 * create the breadcrumb trail

 * see {@link  http://www.zen-cart.com/wiki/index.php/Developers_API_Tutorials#InitSystem wikitutorials} for more details.

 *

 * @package initSystem

 * @copyright Copyright 2003-2011 Zen Cart Development Team

 * @copyright Portions Copyright 2003 osCommerce

 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0

 * @version $Id: init_add_crumbs.php 18697 2011-05-04 14:35:20Z wilt $

 */

if (!defined('IS_ADMIN_FLAG')) {

  die('Illegal Access');

}

$breadcrumb->add(HEADER_TITLE_CATALOG, zen_href_link(FILENAME_DEFAULT));

/**

 * add category names or the manufacturer name to the breadcrumb trail

 */

if (!isset($robotsNoIndex)) $robotsNoIndex = false;

// might need isset($_GET['cPath']) later ... right now need $cPath or breaks breadcrumb from sidebox etc.

if (isset($cPath_array) && isset($cPath)) {

  for ($i=0, $n=sizeof($cPath_array); $i<$n; $i++) {

    $categories_query = "select categories_name

                           from " . TABLE_CATEGORIES_DESCRIPTION . "

                           where categories_id = '" . (int)$cPath_array[$i] . "'

                           and language_id = '" . (int)$_SESSION['languages_id'] . "'";



    $categories = $db->Execute($categories_query);

//echo 'I SEE ' . (int)$cPath_array[$i] . '<br>';

    if ($categories->RecordCount() > 0) {

      $breadcrumb->add($categories->fields['categories_name'], zen_href_link(FILENAME_DEFAULT, 'cPath=' . implode('_', array_slice($cPath_array, 0, ($i+1)))));

    } elseif(SHOW_CATEGORIES_ALWAYS == 0) {

      // if invalid, set the robots noindex/nofollow for this page

      $robotsNoIndex = true;

      break;

    }

  }

}

/**

 * add get terms (e.g manufacturer, music genre, record company or other user defined selector) to breadcrumb

 */

$sql = "select *

        from " . TABLE_GET_TERMS_TO_FILTER;

$get_terms = $db->execute($sql);

while (!$get_terms->EOF) {

	if (isset($_GET[$get_terms->fields['get_term_name']])) {

		$sql = "select " . $get_terms->fields['get_term_name_field'] . "

		        from " . constant($get_terms->fields['get_term_table']) . "

		        where " . $get_terms->fields['get_term_name'] . " =  " . (int)$_GET[$get_terms->fields['get_term_name']];

		$get_term_breadcrumb = $db->execute($sql);

    if ($get_term_breadcrumb->RecordCount() > 0) {

// BEGIN CEON URI MAPPING 1 of 2

	  // Set the required parameters so that an attempt can be made to map the link to any static URI for the

	  // filtered page

	  $typefilter_parameters = '';

	  

	  if ($get_terms->fields['get_term_name'] != 'manufacturers_id') {

		$typefilter_parameters = 'typefilter=' . str_replace('_id', '', $get_terms->fields['get_term_name']) . '&';

	  }

	  

	  $typefilter_parameters .=

		$get_terms->fields['get_term_name'] . '=' . $_GET[$get_terms->fields['get_term_name']];

	  

      $breadcrumb->add($get_term_breadcrumb->fields[$get_terms->fields['get_term_name_field']],

		zen_href_link(FILENAME_DEFAULT, $typefilter_parameters));

	  /*

// END CEON URI MAPPING 1 of 2

      $breadcrumb->add($get_term_breadcrumb->fields[$get_terms->fields['get_term_name_field']], zen_href_link(FILENAME_DEFAULT, $get_terms->fields['get_term_name'] . "=" . $_GET[$get_terms->fields['get_term_name']]));

// BEGIN CEON URI MAPPING 2 of 2

	  */

// END CEON URI MAPPING 2 of 2

    }

	}

	$get_terms->movenext();

}

/**

 * add the products model to the breadcrumb trail

 */

if (isset($_GET['products_id'])) {

  $productname_query = "select products_name

                   from " . TABLE_PRODUCTS_DESCRIPTION . "

                   where products_id = '" . (int)$_GET['products_id'] . "'

             and language_id = '" . $_SESSION['languages_id'] . "'";



  $productname = $db->Execute($productname_query);



  if ($productname->RecordCount() > 0) {

    $breadcrumb->add($productname->fields['products_name'], zen_href_link(zen_get_info_page($_GET['products_id']), 'cPath=' . $cPath . '&products_id=' . $_GET['products_id']));

  }

}

?>

Or is there an other easy way to get this fixed?
Thanks in advanced :-) I'm very happy with this forum, most of the times i find my answers here, thank you for existing!