Dennis
I can help you further if you email me at support@hmn.md
hi Dennis
Could you enable the display of PHP errors by setting this in your wp-config file?
http://codex.wordpress.org/Debugging_in_WordPress#Example_wp-config.php_for_debugging
if you just want to restore the dashboard
can you try connecting via FTP and rename the plugin folder? That should solve your white screen issue.