We had a physical server with a Plesk container on it and the server failed recently. Plesk node was brought back up in a Virtuozzo Container and OBAS still shows Plesk node as registered in the broken server.
How Plesk container properties can be changed?
Change the properties in a usual way: click Edit and choose Virtuozzo node and put the proper container ID. Then click "Synchronize" to synchronize Plesk Clients and Domains with OBAS.
Here you may find more details: Registering Virtuozzo or Plesk Nodes