Writer.. Broken?

Writer.. Broken?

Hello, 

Writer has been really good to me during the months I've used it, up until now. 
I usually launch the app by tapping the icon and I could immediately pick up where I left off. 

Now I'm greeted by a loading circle not reaching 100% and I only have the option to create a new account. 
By pressing that button it now switches to a login screen and I can access my account. However, it seems (only speculating ofc) to be stuck in cell-phone mode? everything looks scrambled. 

I can't access any of the files within the app like before (you can kind of see them to the right). I can, however, access all my writer documents by pressing the link at the very bottom and it opens up the browser and that way I can continue to edit all the files - In the browser only. 

Any ideas? 

Macbook Air (early 2015) running Mojave, if it helps.