Multi-site content copier error

Hello, I just saw this warning when I went into maintenance plugin. I am newbie at this so I dont know what this means. Also see attached screenshot. Thank you

Warning: Missing argument 2 for MCC_Post_Meta_Box::add_meta_boxes() in /home/purest5/public_html/manyriversnetwork.com/wp-content/plugins/multisite-content-copier/admin/edit-post.php on line 25