Same issue for me on Ubuntu 20.04.1 LTS

Same version of chromium snap with the same error output as @Dalik

Output of `snap connections chromium`

```
Interface                 Plug                                    Slot                            Notes
audio-playback            chromium:audio-playback                 :audio-playback                 -
audio-record              chromium:audio-record                   :audio-record                   -
bluez                     chromium:bluez                          :bluez                          -
browser-support           chromium:browser-sandbox                :browser-support                -
camera                    chromium:camera                         :camera                         -
content                   chromium:foo-install-cups               -                               -
content[gnome-42-2204]    chromium:gnome-42-2204                  gnome-42-2204:gnome-42-2204     -
content[gtk-3-themes]     chromium:gtk-3-themes                   gtk-common-themes:gtk-3-themes  -
content[icon-themes]      chromium:icon-themes                    gtk-common-themes:icon-themes   -
content[sound-themes]     chromium:sound-themes                   gtk-common-themes:sound-themes  -
cups                      chromium:cups                           cups:cups                       -
desktop                   chromium:desktop                        :desktop                        -
desktop-legacy            chromium:desktop-legacy                 :desktop-legacy                 -
gsettings                 chromium:gsettings                      :gsettings                      -
home                      chromium:home                           :home                           -
joystick                  chromium:joystick                       :joystick                       -
mount-observe             chromium:mount-observe                  -                               -
mpris                     -                                       chromium:mpris                  -
network                   chromium:network                        :network                        -
network-bind              chromium:network-bind                   :network-bind                   -
network-manager           chromium:network-manager                -                               -
opengl                    chromium:opengl                         :opengl                         -
password-manager-service  chromium:password-manager-service       -                               -
personal-files            chromium:chromium-config                :personal-files                 -
raw-usb                   chromium:raw-usb                        -                               -
removable-media           chromium:removable-media                :removable-media                -
screen-inhibit-control    chromium:screen-inhibit-control         :screen-inhibit-control         -
system-files              chromium:etc-chromium-browser-policies  :system-files                   -
system-packages-doc       chromium:system-packages-doc            :system-packages-doc            -
u2f-devices               chromium:u2f-devices                    :u2f-devices                    -
unity7                    chromium:unity7                         :unity7                         -
upower-observe            chromium:upower-observe                 :upower-observe                 -
wayland                   chromium:wayland                        :wayland                        -
x11                       chromium:x11                            :x11                            -
```

And cups

```
Interface                Plug                          Slot                      Notes
avahi-control            cups:avahi-control            :avahi-control            -
cups                     chromium:cups                 cups:cups                 -
cups-control             -                             cups:cups-control         -
cups-control             cups:cups-host                :cups-control             -
home                     cups:home                     :home                     -
network                  cups:network                  :network                  -
network-bind             cups:network-bind             :network-bind             -
network-manager-observe  cups:network-manager-observe  :network-manager-observe  -
raw-usb                  cups:raw-usb                  :raw-usb                  -
system-files             cups:etc-cups                 :system-files             -
```