Having a blank screen or sass compilation issues after activating the theme?
Please make sure your PHP version is 5.3.0 or above and to have at least 256MB set as your php memory_limit.
The theme backend needs more memory so it can compile options and SASS files into CSS on the fly.
You can set the memory limit by pasting this code at the top of your wp-config.php file.
If this does not work, you will need to contact your web host to increase your php memory limit or you.