Insert Report output data to Temp Table

 Hi,

I am trying to insert Report output to one temp table but getting error

1. in after report triger i am writng insert statment

function AfterReport return boolean is
begin
 loop
  insert into test001(vendor_name)
  values (:description);
  end loop;
  commit;
  return (TRUE);
end;

but report is giving error "REP-1316: After Report Trigger references column 'DESCRIPTION' at wrong frequency.
REP-0069: Internal error
REP-57054: In-process job terminated:Terminated with error:
REP-1316: After Report Trigger references column 'DESCRIPTION' at wrong frequency"

please help.

Regards

Sushant