Fix for WPML site_url()

functions.php

<?php
class WPML_Site_Url_DMS {
  function __construct() {
    remove_shortcode( 'pl_site_url' );
    add_shortcode( 'pl_site_url', array( $this, 'fixed_site_url' ) );
  }
  function fixed_site_url() {
    return site_url();
  }
}
new WPML_Site_Url_DMS();