How to translate registration custom message?

After some testings, I realised that I can’t use ” ‘ ” in this php code to replace %s part. That ‘ resulted in error message.

So I asked ChatGPT to rewrite this code for WPML, and it works perfectly. I will leave it here if anyone would need it.

<?php
/**
 * Template for the message after registration process
 *
 * This template can be overridden by copying it to yourtheme/ultimate-member/templates/message.php
 *
 * Call: function parse_shortcode_args()
 *
 * @version 2.6.1
 *
 * @var string $mode
 * @var int    $form_id
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
} 

// Determine the current language
$current_language = apply_filters( 'wpml_current_language', null );

?>

<div class="um <?php echo esc_attr( $this->get_class( $mode ) ); ?> um-<?php echo esc_attr( $form_id ); ?>">

	<div class="um-postmessage">

        <?php
        if ( $current_language === 'ja' ) {
            // Japanese message
            printf( __( '登録いただきありがとうございます。', 'ultimate-member' ), $this->custom_message );
        } else {
            // English message
            printf( __( 'Thank you for registering.', 'ultimate-member' ), $this->custom_message );
        }
        ?>

	</div>

</div>