It seems the answer is to delete the files. Xml en /etc/libvirt/qemu/ y luego reiniciar libvirtd 
Then, should be able to restart the virtual machine is properly in SolusVM
It seems that the files get re-created by SolusVM when you try to restart the virtual machine is as delete should not cause more problems but I advise making a backup first just in case.
Recuerde ver que el UUID sea coincidente en /etc/libvirt/qemu/ y en /home/kvm/kvmx/archivoxx