I think problem is connected with system crash. I also musted do hard reboot of my computer, because after wake-up my usb WiFi didn't work and system didn't wanted to reboot (even with root privilages). So after some minutes of waiting i've pressed power button and after new boot got this error.
I think problem is connected with system crash. I also musted do hard reboot of my computer, because after wake-up my usb WiFi didn't work and system didn't wanted to reboot (even with root privilages). So after some minutes of waiting i've pressed power button and after new boot got this error.