Hi Manfred, thanks for raising this, unfortunately we do not call the function get_original_product_id() in our Plugin so it’s likely another WordPress Plugin is calling that non-existent function and we’re simply catching it during an export within our Plugin’s fatal PHP ‘trigger’. What I’d do is turn on WordPress error logger via the following resource and then run an export again and check the /wp-content/debug.log
https://codex.wordpress.org/Debugging_in_WordPress#Example_wp-config.php_for_Debugging
