Warning: Invalid argument supplied for for each

Hi,
I am getting this error message:

Invalid argument supplied for foreach() in /home/content/35/7943535/html/2moveabroad/wp-content/plugins/landing-pages/shared/classes/menu.class.php on line 544

Line 544: Is blank, but the script is:

if ($landing_page_status){

              $menu_items['landingpagetemplates'] = array(

                'parent' => $templates_menu,

                'title'  => __( 'Landing Page Templates', 'edd-toolbar' ),

                'href'   => admin_url( 'edit.php?post_type=landing-page&page=lp_manage_templates' ),

                'meta'   => array( 'target' => '', 'title' => __( 'Landing Page Settings', 'edd-toolbar' ) )

              );

[Moderator Note: Please post code & markup between backticks or use the code button. Your posted code may now have been permanently damaged by the forum’s parser.]

I am not a developer but can anyone guide me what to do with this error?