Sorry to hear you are encountering a white screen when activating Hustle. Please enable debug and share the logs with us so we can see what error your site is encountering.
Use define( 'WP_DEBUG', true ); in the wp-config.php file.
Here are further instructions if you are unfamiliar with the process:
https://codex.wordpress.org/Debugging_in_WordPress
Thank you for giving Hustle a try. I am going to mark this topic resolved because we haven’t heard from you in awhile and we have released a new version or Hustle. If this issue was not resolved with the update we can reopen the ticket. Thanks again!