4.2.1 Not working anymore

This app used to work just fine and since I updated to 10.11.4 it not longer operates at all. I also noticed this app has been ignored but the developer’s since Feb. 2015. I feel the app should just be removed from the App Store since it is now apparently useless.
Also the developers do not respond to any support or e-mails so maybe they have just abandoned the whole thing.

bill_obi about Degrees Weather