SQL ERROR

Error 1403 calling procedure:

ORA-01403: nessun dato trovato
ORA-06512: a "ACEC.CN_ACEC", line 449
ORA-06512: a line 3

The last SQL statement executed was:

begin
  if cn_acec.AUTHORIZE then
    cn_acec.c_vedi_film(c_doc=>:B1,origine=>:B2);
    commit;
  else
    :realm := OWA.PROTECTION_REALM;
  end if;
end;