Avada - PHP Fatal error: Uncaught Error: Call to a member function get_id() on bool in...

Overview of the issue

When using Avada +7.10 with WooCommerce Multilingual, the following fatal error occurs if you try to create a page using Avada’s Live Editor.

PHP Fatal error: Uncaught Error: Call to a member function get_id() on bool in ../wp-content/plugins/woocommerce-multilingual/inc/class-wcml-orders.php:481

Workaround

Please, be sure to make a full backup of your site before proceeding.

1. Open the …/wp-content/plugins/woocommerce/includes/class-wc-order-item-product.php file.
2. Look for line 403.
3. Replace this line:

   return apply_filters( 'woocommerce_get_item_downloads', $files, $this, $order );
   

   With:

   // WPML workaround for compsupp-6711
   if ( class_exists('Sitepress') && ! is_object($order) ) {
   	global $woocommerce_wpml;			
   
   	if ( $woocommerce_wpml && isset( $woocommerce_wpml->orders ) ) {
   		$removed = remove_filter( 'woocommerce_get_item_downloads', [ $woocommerce_wpml->orders, 'filter_downloadable_product_items' ], 10 );
   	}
   }		
   
   $result = apply_filters( 'woocommerce_get_item_downloads', $files, $this, $order );
   
   // Maybe restore the filter
   if ( $removed ) {
   	add_filter( 'woocommerce_get_item_downloads', [ $woocommerce_wpml->orders, 'filter_downloadable_product_items' ], 10, 3 );
   }
   
   return $result;