Cause
This error occurs when an operation (for example, partition removal) is attempted on a partition that is not empty (that is, the partition contains objects).
Action
Ensure that the objects in the partition you are attempting to remove are no longer required. If the objects are no longer required, execute a purge to ensure that the objects in the partition are no longer referenced from the active model.
Once a file partition is removed, it cannot be re-assigned or brought back into the database.