If you define roles to manage permission on category/forum, you may have a minor bug when creating new topic : users can select all the categories/forums instead of only having categories where users can create topic.

The solution :

/sys/CODOF/Forum/Category.php
line number 51, change the function

   public function getCategoriesWhereUserCanCreateTopic() {

        $cats = array();
        $user = \CODOF\User\User::get();
        $qry = 'SELECT cat_id, cat_pid, cat_name, cat_alias, no_topics, cat_img, granted'
                . ' FROM ' . PREFIX . 'codo_categories, codo_permissions '
                . ' WHERE permission=\'create new topic\' AND cid=cat_id AND rid=' . $user->rid . ''
                . ' AND EXISTS (SELECT 1 FROM codo_permissions AS p WHERE '
                . '  p.cid=cat_id AND p.rid=' . $user->rid . ' AND permission=\'create new topic\' AND granted=1) '
                . ' ORDER BY cat_order';

        $ans = $this->db->query($qry);

        if ($ans) {

            $cats = $ans->fetchAll(\PDO::FETCH_CLASS);
        }

        $cats = \CODOF\Hook::call('on_get_categories_for_create_topic', $cats);

        return $cats;
    }