Posting a new thread for bug report:
Just a heads up, there is a slight error in the domain mapping plugin >>>Domain mapping Options page
"Please copy the sunrise.php to /opt/bitnami/apps/wordpress/htdocs//wp-content/sunrise.php and uncomment the SUNRISE setting in the /opt/bitnami/apps/wordpress/htdocs/wp-config.php file"
Notice the: htdocs// with two slashes instead of one!
Originally reported by sakumatto here: