That's strange, it seems like its somehow detecting a controller on your device. Try going to your Bluetooth settings and try disconnecting some of the devices and see if that works.
Or you could also try disconnecting any USB Cables if you have any.
And if that doesn't work either, you can reset the save file (which also saves your controller settings) by searching and going to %appdata% on your Windows search bar and deleting the folder with the name TheBunnyGraveyardDEMO