[ovirt-users] Cluster

HI Getting the below error while adding node to the OE which is created from Hosted eghine. 2016-01-06 10:50:49,404 INFO [org.ovirt.engine.core.vdsbroker.VdsUpdateRunTimeInfo] (DefaultQuartzScheduler_Worker-83) [7ce02003] Host 3577e25f-e25e-425d-82ac-f6c3502a281e : infraesx2 is already in NonOperational status for reason MIXING_RHEL_VERSIONS_IN_CLUSTER. SetNonOperationalVds command is skipped. Any way to fix the issue ? Engine version is 3.5.6.2-1.el6 Thanks, Nagaraju