fatal error with facebook pixel - WPML

I am trying to: 1) if I got to the shop: https://int.magped.com/shop/ 2) add a product for example: "Ersatz Schuhplatten" to the basket by

... -facebook-pixel/integration/FacebookWordpressWooCommerce.php: ... me this must be an error with WPML (WooCommerce Mulitlingual).

Lee mas