RMAN-05175
Pluggable database string is skipped, all of the data files are offline, it cannot be opened.
Cause
The specified pluggable database (PDB) could not be opened because all of the data files were offlined during point-in-time recovery of the database root.
Action
If the pluggable database (PDB) is still needed, a separate full restore and recovery session of the PDB needs to be performed. If it is not needed, the PDB should be dropped.