can not make snapshots

[muekno]

I reinstalled PROXMOX on a new Server. Resulting in new storage names. then I restored my VMs from backup. but it seams the old storage names are still stored in VM information. So when I try a snapshot it tries to snapshot to the old storage, resulting in an error. under hardware the new storage names is noted.
Where must I change the name.

I appreciate any hint.

Rainer