This is the script I use:
<?php acf_form_head(); ?>
<?php get_header(); ?>
<?php the_field('codfis', 'pec', 'user_'.$user->ID); ?>
<?php
$options = array(
'post_id' => 'user_'.$user->ID,
'fields' => array('codfis', 'pec'),
'form' => false,
'instruction_placement' => 'field',
);
acf_form($options);
?>
codfis and pec are the two custom fields.
this is how is shown:
https://www.infomyweb.com/erroracf.jpg