Ulysses just deleted my entire library

Was using Ulysses in iPad earlier this evening. A couple of hours later come to use it on iPhone and have a blank environment. No sheets, all my projects have gone, my inbox is empty.

I have restarted iPhone, nothing. I have reinstalled the app, nothing. I have installed from test flight, nothing. Everything has been wiped.

Gone back to iPad and that's empty too.

There are no back ups to restore from, lol everything is like I've never used the software.

Unbelievable that a premium product like Ulysses can screw up user's data like this.