Oracle Solution for Error ora-19873

ORA-19873: cannot apply this backup section to file string

What triggered the Error:

RMAN cannot restore a multi-section backup to the indicated file, because this section is not a backup of this file, or the file was not prepared correctly for this restore.

What should we do to fix it:

this error occurs while running RMAN, then it is an internal error and you should contact Oracle support.