I have lines of code after membership update

I updated the membership plugin and now these lines of code show at the top of my site.

Please help!

Warning: include_once(/includes/class.wpmudev_dash_notification.php) [function.include-once]: failed to open stream: No such file or directory in /home/sisterh0/public_html/wp-content/plugins/members-directory/members-directory.php on line 59

Warning: include_once() [function.include]: Failed opening '/includes/class.wpmudev_dash_notification.php' for inclusion (include_path='.:disappointed:usr/local/php5/lib/php') in /home/sisterh0/public_html/wp-content/plugins/members-directory/members-directory.php on line 59

Warning: Cannot modify header information - headers already sent by (output started at /home/sisterh0/public_html/wp-content/plugins/members-directory/members-directory.php:59) in /home/sisterh0/public_html/wp-content/plugins/wp-cart-for-digital-products/eStore_advanced_configs.php on line 30

Thanks,

JoAnn