Don't run the filters for categories if the $comiccat is not a parent…

… category; this will stop it freezing the site up on updates

functions.php

@@ -301,6 +301,8 @@ function comicpress_in_comic_category($cat = null) {
  */
 function comicpress_create_category_tree() {
 	global $category_tree, $comiccat;
+	$comiccat_check = get_category($comiccat);
+    if (is_null($comiccat_check) || $comiccat_check->category_parent > 0) return array(); // Return empty array if the comiccat isn't a parent.
 	if (empty($category_tree)) {
 		$categories_by_id = comicpress_get_comic_category_objects_by_id();	
 		if (empty($categories_by_id) || !is_array($categories_by_id)) return false;
@@ -346,15 +348,6 @@ function comicpress_create_category_tree() {
 	return $category_tree;
 }
 
-function comicpress_vardump_info() {
-	global $vardumpinfo;
-	echo '<div class="error">';
-	echo $vardumpinfo;
-	echo '</div>';
-}
-
-// if (is_admin()) add_action( 'admin_notices', 'comicpress_vardump_info' );
-
 function comicpress_create_comic_category_tree() {
 	$categories_by_id = comicpress_get_comic_category_objects_by_id();
 	foreach (array_keys($categories_by_id) as $category_id) {
@@ -578,6 +571,8 @@ function comicpress_get_comic_category_objects_by_id() {
 // This uses the comicpress_load_config() because it's not yet triggered in themeinfo
 function comicpress_all_comic_categories_array() {
 	global $comiccat, $comicpress_all_comic_categories_array;
+	$comiccat_check = get_category($comiccat);
+    if (is_null($comiccat_check) || $comiccat_check->category_parent > 0) return array(); // Return if the comiccat isn't a parent.
 	if (empty($comicpress_all_comic_categories_array)) {
 		$comicpress_all_comic_categories_array[] = $comiccat;
 		foreach (get_all_category_ids() as $cats) {