https://bugs.winehq.org/show_bug.cgi?id=44324
--- Comment #4 from orso bianco linux@newwhitebear.net --- (In reply to Fabian Maurer from comment #3)
Why do you try to run it with mono if it's a windows application?
This is the link http://www.spacejock.com/yWriter5.html He writes on linux information
How to run yWriter5 To run yWriter5, open a terminal window, first make sure you're in the path containing 'yWriter5.exe':
cd ~/yWriter5/bin (Enter)
Then type:
mono ./yWriter5.exe (Enter)