Rosti, So all you need to do is apply the fix i give earlier and express the category you want on the shortcode like [guest-posts category=’124′] and that should fix your problem right quick and in a hurry
babar, for line:
‘post_category’ => $category, // Usable for custom taxonomies too
your problem is that it is asking for a array not a string. so for a quick fix all you would need to do is:
‘post_category’ => array($category),
and wala its fixed 🙂
//helper cat is helping