The best thing to do is log a case for this with the support team. This app is actually maintained by the core development team and not the community developers so we can't help with this one. This can be achieved really quickly using this link:
Just fill in the form and submit it. Make sure your email address is entered correctly or nobody will be able to get back in touch with you.
The alternative is to use the SDLXLIFF Toolkit as nicely described by Sinan Yolal
in this post: