Shop_Name In Category Meta Title - In Some Categories Only

[outlet.ee]

PS1.6. Only some of the categories have " - shop_ name" added to the meta title, although they all have the meta title.

 

In classes/meta.php I tried to remove ps_shop name (and cleared cache) here but no luck:

                if (!empty($row['meta_title']))
                    $row['meta_title'] = $title.$row['meta_title'].(!empty($page_number) ? ' ('.$page_number.')' : '');
                else
                    $row['meta_title'] = $row['name'].(!empty($page_number) ? ' ('.$page_number.')' : '').' - '.Configuration::get('PS_SHOP_NAME');

                if (!empty($title))
                    $row['meta_title'] = $title.(!empty($page_number) ? ' ('.$page_number.')' : '').' - '.Configuration::get('PS_SHOP_NAME');

Does anybody know where this shop title is coming from?