Custom Image Gallery is not fetching the images on WordPress - php

Question

I am using an Image Gallery in Custom Post Type on my WordPress Website. The Plugin I am using for that is Advanced Custom Fields. There is some error, due to which image gallery is not getting displayed on frontend.
Please check the page.
http://divinepower.co.in/cof/projects/residential/surrey-hills-vic/
Though the same code is working fine on another custom post type.
http://divinepower.co.in/cof/brands/gloster/asta/
The code I am using is
<?php get_header(); ?>
<div id="content">
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php
// Show the Gallery
if( have_rows('gallery_slideshow') ):
echo '<div class="projects-gallery-wrap">';
echo '<div class="projects-gallery">';
// loop through the rows of data
while ( have_rows('gallery_slideshow') ) : the_row();
$imgObj = get_sub_field('image', $post->ID);
echo '<img class="item" src="'.$imgObj[sizes]['projects-gallery'].'" alt="'.$imgObj[alt].'"/>';
endwhile;
echo '</div>';
echo '</div>';
endif;
?>
<div id="inner-content" class="wrap cf">
<main id="main" class="main-content" role="main" itemscope itemprop="mainContentOfPage" itemtype="http://schema.org/Blog">
<div class="gallery-controls">
<button class="prev"><i class="fa fa-chevron-left"></i></button>
<button class="next"><i class="fa fa-chevron-right"></i></button>
</div>
<article id="post-<?php the_ID(); ?>" <?php post_class('cf'); ?> role="article" itemscope itemtype="http://schema.org/BlogPosting">
<?php
$currentBrandName = cosh_get_brand_name();
$currentBrandSlug = cosh_get_brand_slug();
?>
<div class="content">
<header class="article-header">
<div class="title-wrap">
<h1 class="entry-title single-title" itemprop="headline"><?php the_title(); ?></h1>
<?php
// Brand Image
print apply_filters( 'taxonomy-images-list-the-terms', '', array(
'before' => '<ul class="projects-logos">',
'after' => '</ul>',
'image_size' => 'full',
'taxonomy' => 'brand'
) );
?>
</div>
<?php
// Social share
$currentURL = get_permalink( $post->ID );
?>
<div class="social-share">
<i class="fa fa-facebook"></i>
<i class="fa fa-pinterest-p"></i>
</div>
</header>
<section class="entry-content cf" itemprop="articleBody">
<div class="content-wrap">
<?php the_content(); ?>
<?php
// projects Link
$projectsURL = site_url()."/brand/".$currentBrandSlug;
if($projects){ ?>
View all <?php echo $currentBrandName; ?> projectss ›
<?php }; ?>
</div>
<?php
// Additional Info
$materials = get_field('materials', $post->ID);
$projectsSpecs = get_field('projects_specs', $post->ID);
if($materials || $projectsSpecs){ ?>
<div class="additional-info">
<?php
// Materials
if($materials){ ?>
<h4>Materials <i class="fa fa-pencil"></i></h4>
<p><?php the_field('materials'); ?></p>
<?php };
// projects Specs
if($projectsSpecs){ ?>
Download Specs <i class="fa fa-download"></i>
<?php }; ?>
</div>
<?php } ?>
</section>
<?php/*
// Show the Gallery
if( have_rows('gallery_slideshow') ):
echo '<div class="projects-gallery-wrap-mobile">';
echo '<div class="projects-gallery-mobile">';
// loop through the rows of data
while ( have_rows('gallery_slideshow') ) : the_row();
$imgObj = get_sub_field('image', $post->ID);
echo '<img class="item" src="'.$imgObj[sizes]['projects-gallery'].'" alt="'.$imgObj[alt].'"/>';
endwhile;
echo '</div>';
echo '</div>';
endif;
*/ ?>
</div>
</article>
<?php get_template_part('parts/enquiry_form'); ?>
</main>
</div>
<?php endwhile; ?>
<?php endif; ?>
</div>
<?php get_footer(); ?>
Please help me to find the error. Thanks