Did you perform an upgrade before this error occured?
It seems that services are not started correctly.
Try ssh to cnmaestro an reboot the VM or reboot it via hypervisor and wait for few minutes.
At ours on Oracle VM it run perfect but if we deploy in kvm we got same error. We recognized in logs there is problem with mongodb service. And solved. You must choose a correct CPU for your VM because mongodb didnt support all and service doesnt start. We set in KVM xml: cpu mode - host passthrough. SRY for my english. So the problem came from mongodb service didnt run because of unsopported CPU type.