libvirt/virt-manager: snapshot corrupted, how can I start my virtual machine again?

virsh # start my-virtual-machine-name
error: Failed to start domain my-virtual-machine-name
error: cannot send monitor command '{"execute":"qmp_capabilities"}': Connection reset by peer

1) Remove any snapshot available
# rm -f /var/lib/libvirt/qemu/save/my-virtual-machine-name

2) restart libvirtd
# service libvirtd restart

3) Start the virtual machine again