[ovirt-users] Unexpected return value: Status [code=-32603, message=Internal JSON-RPC error: {'reason': "'libvirt'"}]

hi, i have problem adding host to ovirt 4.4.8 standalone engine host is centos 8 stream (migrated from centos 8) on engine  /var/log/ovirt-engine/engine.log 2021-08-30 10:32:43,422+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesAsyncVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Failed in 'Get Host Capabilities' method 2021-08-30 10:32:43,422+02 WARN [org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesAsyncVDSCommand] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Unexpected return value: Status [code=-32603, message=Internal JSON-RPC error: {'reason': "'libvirt'"}] 2021-08-30 10:32:43,423+02 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.HostMonitoring] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-69) [] Unable to RefreshCapabilities beforeFirstRefreshTreatment: VDSErrorException: VDSGenericException: VDSErrorException: Failed to Get Host Capabilities, error = Internal JSON-RPC error: {'reason': "'libvirt'"}, code = -32603 any tips/ideas? Marek