Multisite Marketpress Product List - Error on Line 1656 - Only error on Admin

Hey Guys,

Having an odd issue.

I have a global product list put together on this page: http://www.cfai.co/gallery/

It works fine when your viewing it as a non-logged in user. But as soon as you log in, the page is not visible.

I turned on debug and i get this error:

Notice: Undefined variable: class in /usr/local/plesk/apache/vhosts/cfai.co/httpdocs/wp-content/plugins/marketpress/marketpress-includes/template-functions.php on line 1656

Here is my code I have on that page:

<?php
$args = array(
    'echo' => true,
    'paginate' => true,
    'per_page' => 50,
		'order_by' => 'date',
    'order' => 'DESC',
		'category' => '',
    'tag' => '',
		'show_thumbnail' => true,
		'thumbnail_size' => 100,
		'context' => 'list',
		'show_price' => false,
		'text' => 'none',
		'as_list' => true );
$args = array(
		'echo' => true,
    'per_page' => 50,
		'category' => '',
    'tag' => '',
		'sep' => ' -- ',
		'prelabel' => __('« Previous', 'mp'),
		'nxtlabel' => __('Next »', 'mp')
	);
    //check for paging
    if (get_query_var('paged'))
      $args['page'] = intval(get_query_var('paged'));
    mp_list_global_products( $args ); ?>
<div id="product-pagination">
    <?php mp_global_products_nav_link($args); ?>
</div>

I checked line 1656, all variables seem to be defined.

Any ideas?

- Nick