Error in the Loader command for importing data.
The data generated with the EXPORT command is a binary structure of the exported database. If you want to import the data to another database, both database instances must have the same page size.
This error occurs when the page size of the database instance from which the tables were exported is different than the page size of database instance into which they are to be imported.
Use a target database instance that has the same page size as the source database instance.