Try to follow 7h3h suggestion, download the zip and install it again. Remember to deactivate the plugin first, upload the updated plugin folder via ftp to wp-content/plugins/ . Return to the dashboard and (re)activate the plugin again.
An other way of trouble shooting a defunct or conflicting plugin is to deactivate every plugin one at a time and see if the blank screen disappears. If it does you know which plugin is causing the problem.