Translate the error messagens using WPML or code

Has I needed the message translated I did this clumsy fix, however it’s not ideal and if someone has a better way to translate the messages of the plugin it would be much appreciated.

Best Regards

add_filter('woocommerce_add_error','dg_translate_error_messages',1,99);
function dg_translate_error_messages($message){
	
	$the_lang = $_GET['lang']?:'pt';
	$message_to_translate = 'A Encomenda deverá ter o valor mínimo de 10€ (excluindo envio).';
	
	//check the message to translate
	if($message == $message_to_translate){
		
		if($the_lang == 'fr'){
			$message = 'La Commande doit avoir un montant minimum de 10€ (hors frais de port).';
		}

		if($the_lang == 'es'){
			$message = 'El Pedido debe tener un valor mínimo de 10 € (sin gastos de envío).';
		}

		if($the_lang == 'en'){
			$message = 'The Order must have a minimum value of €10 (excluding shipping).';
		}
	}
	
	return $message;
}