Issue is only in the single ad page which is a custom post type. This issue was there in earlier versions of the plugin. But it was fixed with previous update. With the new update it has come up again.
here is the code within the loop in single ad page.
<?php if(have_posts()) : ?>
<?php while(have_posts()) : the_post() ?>
<?php appthemes_stats_update($post->ID); //records the page hit ?>
<div class="shadowblock_out">
<div class="shadowblock">
<div class="price-wrap">
<span class="tag-head"> </span><p class="post-price"><?php if(get_post_meta($post->ID, 'price', true)) cp_get_price_legacy($post->ID); else cp_get_price($post->ID); ?></p>
</div>
<?php endif;?><!--close ispriced started in line 50-->
<h1 class="single-ad"><a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></h1>
<div class="pad5 dotted"></div>
<div class="bigright">
<ul>
<?php
// grab the category id for the functions below
$cat_id = appthemes_get_custom_taxonomy($post->ID, 'ad_cat', 'term_id');
// check to see if ad is legacy or not
if(get_post_meta($post->ID, 'expires', true)) { ?>
<li><span><?php _e('Location:', 'appthemes') ?></span> <?php echo get_post_meta($post->ID, 'location', true); ?></li>
<li><span><?php _e('Phone:', 'appthemes') ?></span> <?php echo get_post_meta($post->ID, 'phone', true); ?></li>
<?php if(get_post_meta($post->ID, 'cp_adURL', true)) ?>
<li><span><?php _e('URL:','appthemes'); ?></span> <?php echo appthemes_make_clickable(get_post_meta($post->ID, 'cp_adURL', true)); ?></li>
<li><span><?php _e('Listed:', 'appthemes') ?></span> <?php the_time(get_option('date_format') . ' ' . get_option('time_format')) ?></li>
<li><span><?php _e('Expires:', 'appthemes') ?></span> <?php echo cp_timeleft(strtotime(get_post_meta($post->ID, 'expires', true))); ?></li>
<?php
} else {
if(get_post_meta($post->ID, 'cp_ad_sold', true) == 'yes') : ?>
<li id="cp_sold"><span><?php _e('This item has been sold', 'appthemes'); ?></span></li>
<?php endif; ?>
<?php
// 3.0+ display the custom fields instead (but not text areas)
cp_get_ad_details($post->ID, $cat_id);
?>
<li id="cp_listed"><span><?php _e('Listed:', 'appthemes') ?></span> <?php the_time(get_option('date_format') . ' ' . get_option('time_format')) ?></li>
<?php if (get_post_meta($post->ID, 'cp_sys_expire_date', true)) ?>
<li id="cp_expires"><span><?php _e('Expires:', 'appthemes') ?></span> <?php echo cp_timeleft(strtotime(get_post_meta($post->ID, 'cp_sys_expire_date', true))); ?></li>
<?php
} // end legacy check
?>
</ul>
</div><!-- /bigright -->
<?php if(get_option('cp_ad_images') == 'yes'): ?>
<div class="bigleft">
<div id="main-pic">
<?php cp_get_image_url(); ?>
<div class="clr"></div>
</div>
<div id="thumbs-pic">
<?php if(get_post_meta($post->ID, 'images', true)) echo cp_get_image_thumbs_legacy($post->ID, get_option('thumbnail_size_w'), get_option('thumbnail_size_h'), $post->post_title); else cp_get_image_url_single($post->ID, 'thumbnail', $post->post_title, -1); ?>
<div class="clr"></div>
</div>
</div><!-- /bigleft -->
<?php endif; ?>
<div class="clr"></div>
<div class="single-main">
<?php
// 3.0+ display text areas in content area before content.
cp_get_ad_details($post->ID, $cat_id, 'content');
?>
<h3 class="description-area"><?php _e('Description','appthemes'); ?></h3>
<?php the_content(); ?>
<div class='note'><strong><?php _e('Ad Reference ID:','appthemes'); ?></strong> <?php if(get_post_meta($post->ID, 'cp_sys_ad_conf_id', true)) echo get_post_meta($post->ID, 'cp_sys_ad_conf_id', true); else echo __('N/A', 'appthemes'); ?></div>
</div>
<div class="dotted"></div>
<div class="pad5"></div>
<div class="prdetails">
<p class="tags"><?php if(get_the_term_list($post->ID, 'ad_tag')) echo get_the_term_list($post->ID, 'ad_tag', '', ' ', '' ); else echo __('No Tags', 'appthemes'); ?></p>
<?php if (get_option('cp_ad_stats_all') == 'yes') { ?><p class="stats"><?php appthemes_stats_counter($post->ID); ?></p> <?php } ?>
<p class="print"><?php if(function_exists('wp_email')) { email_link(); } ?> <?php if(function_exists('wp_print')) { print_link(); } ?></p>
</div>
<p><?php if(function_exists("wpfblike")) echo wpfblike(); ?></p>
<?php if( function_exists('ADDTOANY_SHARE_SAVE_KIT') ) { ADDTOANY_SHARE_SAVE_KIT(); } ?>
<?php if(function_exists('selfserv_sexy')) { selfserv_sexy(); } ?>
</div><!-- /shadowblock -->
</div><!-- /shadowblock_out -->
<?php endwhile; else: ?>
<p><?php _e('Sorry, no listings matched your criteria.','appthemes'); ?></p>
<?php endif; ?>
<div class="clr"></div>
