Problem with joystick configuration

I connected a real joystick (Qucikshot) using a PC adapter. The joystick is intended to be used to play games from Commodore 64 and Amiga. Everything works great, but retroarch still shows information that the joystick is not configured. The information appears non-stop when I turn the game on/off or minimize retroarch. I tried setting all buttons in the input tab and turning off notification visibility --> connection notification. But it doesn’t change anything, the message still appears.