Multi instances ttylinux

Hi,
few days ago I have installed Opennebula system with two hosts…after downloaded the ttylinux image from app repository, I have tried to execute multi instances of image on same hosts.
The first instance run regularly but the follow stay pending…
For convenience I have disabled one host … and after lunch the first instances the host status get in error:
ID NAME CLUSTER RVM ALLOCATED_CPU ALLOCATED_MEM STAT
5 HostMasterFews default 0 0 / 800 (0%) 0K / 15.6G (0%) dsbl
7 NebulaKVM default 1 50 / 800 (6%) 128M / 15.7G (0%) err

and the error is:

Wed Feb 7 11:15:17 2018 : Error monitoring Host NebulaKVM (7): …/…/vmm/kvm/poll:228:in round': wrong number of arguments (1 for 0) (ArgumentError) from ../../vmm/kvm/poll:228:inget_cpu_info’
from …/…/vmm/kvm/poll:226:in each' from ../../vmm/kvm/poll:226:inget_cpu_info’
from …/…/vmm/kvm/poll:132:in get_all_vm_info' from ../../vmm/kvm/../lib/poll_common.rb:99:inprint_all_vm_template’
from …/…/vmm/kvm/poll:531
ERROR MESSAGE --8<------
Error executing poll.sh
ERROR MESSAGE ------>8–

now … why this error jump out? why the second instance remains pending?
I have tried to ask in support forum without succes
Best regards!

solved…
please look the ‘Multi instances’ post on the support section.
Bye

Better provide the direct link https://forum.opennebula.io/t/multi-instances/