Get fields after submission

Hi

I'm trying to display the values of the fields and fields in a group I have entered in the form after a submission on the page.

But it's not working.

field group name: ticket-addon
text id: text_xz6kbjy3pgr
Group id: group_tapgyiu2mz
Groud select id: select_lx9zylbpk6b

add_action(
    "rwmb_frontend_after_process",
    function ($config, $post_id) {
        if ("ticket-addon" === $config["id"]) {

            echo rwmb_get_value( 'text_xz6kbjy3pgr' );

            $group_values = rwmb_meta( 'group_tapgyiu2mz' );
            if ( ! empty( $group_values ) ) {
                foreach ( $group_values as $group_value ) {
                    $value = isset( $group_value[ 'select_lx9zylbpk6b' ] ) ? $group_value[ 'select_lx9zylbpk6b' ] : '';
                    echo $value; // Display sub-field value
                }
            }

            die();
        }
    },
    10,
    2
);