Multisite Content Copier compatible with NexGEN Gallery?

Hello,

When attempting to add a gallery to a post (Add NextGen Gallery button from the toolbar in Edit Post), I received the following error message:

Fatal error: Class 'MCC_Post_Meta_Box' not found in /home/allhabs/public_html/wp-content/plugins/multisite-content-copier/multisite-content-copier.php on line 269

Is it a compatibility problem with MCC?

Thank you for looking into this problem,

Rick