The problem lies with the Custom Field / Shortcode combo you’ve crafted. The other fields are working fine and are not part of the issue.
Let’s assume stadium_slider is a ‘Gallery Field’, look at the Gallery Field Docs here.
The bottom example pretty much shows exactly what you’re attempting.
<?php
$image_ids = get_field('gallery', false, false);
$shortcode = '[gallery ids="' . implode(',', $image_ids) . '"]';
echo do_shortcode( $shortcode );
?>
Use this example code, replace get_field('gallery', false, false); with get_field('stadium_slider', false, false);.
This should dump a basic WordPress gallery with the images that have been selected in the back end.
Now we need Owl Carousel to take over. According to the owl-carousel plugin, there should be a setting to override the default galleries with it instead, take a look in it’s settings for something that sounds like this.
Find this setting and you are away.
A good help would be to turn on debug mode if you haven’t already in wp-config. If the code is already there, set it to true like so.
define( 'WP_DEBUG', true );
Hope this helps!
