Did the admission of the unrefuted inadmissible hearsay evidence constitute harmful error

question presented is as follows: Did the admission of the unrefuted inadmissible hearsay evidence constitute harmful error. Because the proper application of Federal Rule of Evidence 403 and Federal Rule of Criminal Procedure 52(a) are of exceptional importance to the administration of justice in federal criminal cases, this Court should grant certiorari in this case to decide this question and, and upon review, should reverse the judgment of the Fifth Circuit. i a