error in terminal

sh: /sys/bus/pci/devices/0000:0c:00.0/driver/unbind: No such file or directory
sh: line 0: echo: write error: No such device
sh: /sys/bus/pci/devices/0000:0c:00.1/driver/unbind: No such file or directory
sh: line 0: echo: write error: No such device
qemu-system-x86_64: -device vfio-pci,host=0c:00.0,multifunction=on,x-vga=on,
romfile=/home/colt/vm/RX5804GB_original.rom vfio 0000:0c:00.0: failed to open /dev/vfio/11: No such file or directory