Strange because I don't see any issues.
Can you make sure you're using the the latest FlixTools version? (and not the older 'SubFlix' because that one is no longer supported)
The download link for FlixTools is: http://www.flixtools.com/download/FlixTools.dmg
edit: It indeed ended up to be an older version that was no longer supported. This normally doesn't happen but in this case, it was the old SubFlix and support for SubFlix has stopped.
For others that encounter any issues, we're here to help but please make sure you're using the latest version. (See link above)