I don’t know what I’m doing wrong, but it still doesn’t work. Below my original code:
<?php query_posts( array( 'post_type' => 'custom_post_name', 'post_status' => 'publish', 'posts_per_page' => 1 ) ); ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php if(have_rows('repeater_field_name')): ?>
<?php while( have_rows('repeater_field_name') ): the_row(); ?>
<?php the_sub_field('date_picker'); ?>
<?php endwhile; ?>
<?php endif; ?>
<?php endwhile; endif; ?>