Resume protected clustered VM after Migration

Hi,

I was protecting a couple of VMs on cluster1  with DPM. 

I recently created a new cluster, cluster2. And moved the VMs from cluster1 to cluster2.

The DPM backups are now failing as DPM is not finding the VMs on cluster1.

How can I resume the backup of the VMs on Cluster2 without DPM creating new replicas?

Thanks,