USB devices not authorized for usage after Debian upgrade

I am running Debian on a Lenovo Thinkpad X240. Some time ago I upgraded from Stretch to Buster. Since then the USB-Keyboard and the USB-Mouse don't work. I can't read or access any USB-Sticks either. The system is up to date and I've rebooted it several times. The keyboard and the mouse are recognized (I see them when running lsusb), but running dmesg I get a *Device is not authorized for usage* message. I also get this message when plugin in any USB-memory. > dmesg [10599.977463] usb 2-2: new low-speed USB device number 10 using xhci_hcd [10600.134705] usb 2-2: New USB device found, idVendor=XXXX, idProduct=XXXX, bcdDevice= 1.07 [10600.134709] usb 2-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [10600.135024] usb 2-2: Device is not authorized for usage What should I do to continue troubleshooting and get the USBs working?