Domain Mapping Error after Update

Warning: include_once(dash-notice/wpmudev-dash-notification.php) [function.include-once]: failed to open stream: No such file or directory in /home/omcsafety/safetylives.com/wp-content/plugins/domain-mapping/domain-mapping.php on line 1262

Warning: include_once() [function.include]: Failed opening 'dash-notice/wpmudev-dash-notification.php' for inclusion (include_path='.:disappointed:usr/local/lib/php:disappointed:usr/local/php5/lib/pear') in /home/omcsafety/safetylives.com/wp-content/plugins/domain-mapping/domain-mapping.php on line 1262