In touch I have to open an app, and when I touch the widget, the app opens. But if I touch the widget after the first time the app doesn't open and I have to open the KWGT app and go to the home screen and it works but only one time. And then repeat.
See if you don't have Kwgt in battery save mode in your phone, if yes, you need to remove Kwgt from here to allow Kwgt run in background and your phone can't kill the process.