Gnome-boxes can't clone VM

Hello !
I’m having an issue with Gnome-boxes when I try to clone a VM. The operation never works. Here’s the return from the terminal :

gnome-boxes                                                      ✔ 

(gnome-boxes:11424): Gtk-WARNING **: 22:12:00.465: GtkFlowBox with a model will ignore sort and filter functions

(gnome-boxes:11424): Gtk-WARNING **: 22:12:00.466: GtkListBox with a model will ignore sort and filter functions
Boxes-Message: 22:12:01.151: libvirt-machine.vala:274: Failed to connection to system libvirt: Impossible d'ouvrir qemu+unix:///system: Failed to connect socket to '/var/run/libvirt/virtqemud-sock-ro': No such file or directory

(gnome-boxes:11424): GLib-GObject-WARNING **: 22:12:01.298: ../glib/gobject/gsignal.c:2722: handler '2871' of instance '0x55c2e25f84c0' is not blocked

(gnome-boxes:11424): GLib-GObject-WARNING **: 22:12:07.717: ../glib/gobject/gsignal.c:2722: handler '2871' of instance '0x55c2e25f84c0' is not blocked

(gnome-boxes:11424): Gtk-WARNING **: 22:12:08.276: Calling org.gnome.SessionManager.Inhibit failed: GDBus.Error:org.gnome.SessionManager.GeneralError: Invalid inhibit flags

** (gnome-boxes:11424): CRITICAL **: 22:12:08.774: gvir_storage_vol_get_path: assertion 'GVIR_IS_STORAGE_VOL(vol)' failed

(gnome-boxes:11424): Boxes-CRITICAL **: 22:12:08.774: boxes_installed_media_copy: assertion 'destination_path != NULL' failed

So after that, I have to follow the steps described in this topic to make it work again.
I’d like to clone a VM to try some stuff and be able to compare.
Any idea how to solve this issue?

Is libvirt installed and your system up to date and rebooted?
sudo pacman-mirrors -f5 && sudo pacman -Syyu libvirt

Thank you bogdancovaciu, I tried your solution, but the issue is still here after rebooting.