Oxygen Code-block for subfield from cloneable group inside setting page

<?php

// the cloneable group field id is 'levering_product_pagina',   and the option name in the setting page is 'my_option'

$group_values = rwmb_meta( 'levering_product_pagina', ['object_type' => 'setting'], 'my_option' );

if ( ! empty( $group_values ) ) {

    foreach ( $group_values as $group_value ) {

        // inside the group, we are having two fields first 'title_levering' an heading, and second 'omschrijving_levering' a paragraph

        echo '<h3 class="ar-title">'.$group_value['titel_levering'].'</h3>';
        echo '<p class="ar-content">'.$group_value['omschrijving_levering'].'</p>';
    }
}

?>