Yes, the directory is there. As for the file:
du -b HeliumRain-LinuxNoEditor.pak 3548394868 HeliumRain-LinuxNoEditor.pak md5sum HeliumRain-LinuxNoEditor.pak 9a8279a59b35ffcc847779c130514099 HeliumRain-LinuxNoEditor.pak
Looks accurate so it's clearly our fault. We're trying on our end too.