My controller doesn't work anymore

[Fede-w]

I'm on windows and i use the 0.9.13 version.

My ps4 controller doesn't work anymore (just 1/2 hours ago it was fine) i obviously checked it, and the controller works fine, both on the pc and on my ps4.
I wonder why it stopped working randomly and if anyone know how to fix this issue.
Any help would be much appreciated.

[zeromus]

reboot your computer
close steam
delete desmume.ini
try to remember what sleazeware, pad mapping application, or 3rd party driver you installed at the instant when it broke.