Ядро паники Ubuntu 20.04

Я получаю панику ядра Ubuntu 20.04 при попытке завершить работу. Перезагрузка как-то проходит. Пробное отключение с помощью init 0 или из графического интерфейса, дающее тот же результат. изображение здесь https://i.redd.it/a2w2rlci1mw41.jpg . Как устранить это сообщение об ошибке sudo lshw -C memory

*-firmware                
       description: BIOS
       vendor: Alienware
       physical id: 0
       version: 1.0.21
       date: 02/25/2020
       size: 64KiB
       capacity: 16MiB
       capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int14serial int17printer acpi usb biosbootspecification netboot uefi
  *-memory
       description: System Memory
       physical id: 2d
       slot: System board or motherboard
       size: 32GiB
     *-bank:0
          description: DIMM DDR4 Synchronous Unbuffered (Unregistered) 2666 MHz (0.4 ns)
          product: KHX2666C16/16G
          vendor: 00002B0C0000
          physical id: 0
          serial: 11298D68
          slot: ChannelA-DIMM0
          size: 16GiB
          width: 64 bits
          clock: 2666MHz (0.4ns)
     *-bank:1
          description: DIMM [empty]
          physical id: 1
          slot: ChannelA-DIMM1
     *-bank:2
          description: DIMM DDR4 Synchronous Unbuffered (Unregistered) 2666 MHz (0.4 ns)
          product: KHX2666C16/16G
          vendor: 00002B0C0000
          physical id: 2
          serial: 0B29EE67
          slot: ChannelB-DIMM0
          size: 16GiB
          width: 64 bits
          clock: 2666MHz (0.4ns)
     *-bank:3
          description: DIMM [empty]
          physical id: 3
          slot: ChannelB-DIMM1
  *-cache:0
       description: L1 cache
       physical id: 34
       slot: L1 Cache
       size: 384KiB
       capacity: 384KiB
       capabilities: synchronous internal write-back unified
       configuration: level=1
  *-cache:1
       description: L2 cache
       physical id: 35
       slot: L2 Cache
       size: 1536KiB
       capacity: 1536KiB
       capabilities: synchronous internal write-back unified
       configuration: level=2
  *-cache:2
       description: L3 cache
       physical id: 36
       slot: L3 Cache
       size: 9MiB
       capacity: 9MiB
       capabilities: synchronous internal write-back unified
       configuration: level=3
  *-memory UNCLAIMED
       description: Memory controller
       product: 200 Series/Z370 Chipset Family Power Management Controller
       vendor: Intel Corporation
       physical id: 1f.2
       bus info: pci@0000:00:1f.2
       version: 00
       width: 32 bits
       clock: 33MHz (30.3ns)
       configuration: latency=0
       resources: memory:ec100000-ec103fff