Cannot start VM from Virt Manager

[mdtech]

I can define a VM but I cannot start it.
I checked the log file and this is what I found

mkdir -p /var/lib/zentyal/tmp/libvirt-networks
cp /etc/libvirt/qemu/networks/*.xml /var/lib/zentyal/tmp/libvirt-networks/
chmod 644 /var/lib/zentyal/tmp/libvirt-networks/*.xml failed.
Error output: cp: cannot stat '/etc/libvirt/qemu/networks/*.xml': No such file or directory
Thanks