(E_WARNING) Illegal string offset 'title'

/meta-box/inc/about/dashboard.php

$feeds = array(
            $this->slug => array(
                'link' => $this->link,
                'url' => $this->feed_url,
                'title' => $this->title['title'],
                'items' => 3,
                'show_summary' => 0,
                'show_author' => 0,
                'show_date' => 0,
            )
);

$this->title is a string, not an array. Please can you fix it?