@twinpeaks, what you are seeing is expected behaviour, it's not possible to launch just the quick entry panel without the app being open. The script was designed to stop the annoyance of hitting the keyboard shortcut and nothing happening because the app is closed, thus forcing you to launch the app and then enter your item. Instead you just hit the keyboard shortcut and the QE will appear whether the app was open or not (if not it'll launch and show you the QE).