search custom fields

Hello,
I am hoping to use Custom Post Type and Custom feilds to create a GEO postal code search.

I have already unserialized my wordpress build. I am trying to test my search now and i ignores my custom field search.

It is ignoring ‘region’ => $newcamps_region and dumping 10 results
region is the custom field

How would I write this query?

$postal_code = $_POST[“postal_code”];
$distance = $_POST[“distance”];
$newcamps_region = $_POST[“newcamps_region”];

echo “Postal Code: “.$postal_code.”
“;
echo “Distance: “.$distance.”
“;
echo “Region: “.$newcamps_region.”
“;

$args = array( ‘post_type’ => ‘NEW Camp’, ‘posts_per_page’ => 10, ‘region’ => $newcamps_region );
$loop = new WP_Query( $args );

if ( $loop->have_posts() ) :

while ( $loop->have_posts() ) : $loop->the_post();

the_title();
echo ‘<div class=”entry-content”>’;
the_content();
echo ‘</div>’;
endwhile;

else:

echo ‘no results found’;

endif;

https://ww.wp.xz.cn/plugins/wck-custom-fields-and-custom-post-types-creator/