编辑电子邮件模板后，woocommerce 报错

更换新订单后，出现内部服务器错误。帮我找出问题所在。/* 我修复了代码，但错误仍然存​​在，顺便说一句，如果我删除了至少一个 do_action，它会立即发出内部错误。*/

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

echo "= " . $email_heading . " =\n\n";

echo $order->get_formatted_billing_full_name() . "\n";
if ( $order->get_billing_address_2() ) {
    echo $order->get_billing_address_1() . " " . $order->get_billing_address_2() . "\n";
} else {
    echo $order->get_billing_address_1() . "\n";
}
echo $order->get_billing_phone() . "\n";
echo "---\n";
if ( $order->get_customer_note() ) {
    echo "Комментарий\t " . wptexturize( $order->get_customer_note() ) . "\n";

echo "---\n";

do_action( 'woocommerce_email_order_details', $order, $sent_to_admin, $plain_text, $email );

echo "---\n";


foreach ( $totals as $total ) {
        if ($total['label'] == "Payment method") echo "Форма оплаты: " . "\t " . $total['value'] . "\n";
    }
    foreach ( $totals as $total ) {
        if ($total['label'] == "Subtotal") echo "Сумма заказа: " . "\t " . $total['value'] . "\n";
    }
    foreach ( $totals as $total ) {
        if ($total['label'] == "Shipping") echo "Доставка: " . "\t " . $total['value'] . "\n";
    }
    foreach ( $totals as $total ) {
        if ($total['label'] == "Total") echo "Итого: " . "\t " . $total['value'] . "\n";
    }

echo "---\n";

echo "Site.by";