Edit File: wpml.php
<?php defined( 'ABSPATH' ) || exit; if ( defined( 'ICL_SITEPRESS_VERSION' ) && ICL_SITEPRESS_VERSION ) : /** * Tell WooCommerce Multilingual that we are caching. * This will add a URL param when switching currency to get the correct response. */ add_filter( 'wcml_is_cache_enabled_for_switching_currency', '__return_true' ); endif;