[ovirt-users] Please help recovery oVirt

I have installed RHEV 4.3.4. I wanted to migrate the host to Ovirt 4.5. As a result I loss of the oVirt Engine’s database (configuration). RHEV host is up, RHE engine is up to. But Storage Domain is deactive. All data of Storage Domains is ok. I tried to import Storage Domain to Ovirt 4.5 (according to documentation 3.6 - https://www.ovirt.org/develop/release-management/features/storage/importunre...) But get error "Error while executing action Attach Storage Domain: AcquireHostIdFailure" Please help recovery oVirt. Minimun: - copy data from Storage Domain Maximu: recovey VM entities