Syntax problem

Hi Gurus!

Could anyone please let me know what exactly is the problem with my this part of code , its giving me syntax errors saying tables with header lines not supported with OO concept.

The parameters used here are:

IV_KNUMV Importing Type KNUMV

IV_KPOSN Importing Type KPOSN

RV_IS_LIST Returning Type ZPRICE_TYPE

data: lv_kotabnr type c length 15.
data:     begin of it_konv occurs 0,
        KINAK type konv-kinak,
        KSCHL type konv-kschl,
        KOLNR type konv-kolnr,
      end of it_konv         ,

      begin of it_t685 occurs 0,
        kozgf type t685-kozgf,
      end of it_t685         ,
 
      begin of it_t682i occurs 0,
        kotabnr type t682i-kotabnr,
        kolnr   type t682i-kolnr,
        kozgf type t682i-kozgf  ,
      end of it_t682i         ,

      begin of it_price occurs 0,
        ZPRICE_TYPE type zsd_price_type-ZPRICE_TYPE,
      end of it_price         .


*************************************************************************************
* In all select Queries, fields sequence in WHERE clause should match with that in
* database table. This will improve the performance
*************************************************************************************

refresh it_konv.
select KINAK
       KSCHL
       KOLNR
  from konv
  into table it_konv
 where kinak = ' '
   and knumv eq iv_knumv
   and kposn eq iv_kposn .

check not it_konv[] is initial.

refresh it_t685.
select kozgf
  into table it_t685
  from T685
   for all entries in it_konv
 where kappl = 'V'
   and kschl = it_konv-kschl.

if sy-subrc eq 0.
  refresh it_t682i.
  Loop at it_konv.
    Loop at it_t685 where kschl = it_konv-kschl.
      move : it_konv-kolnr to it_t682i-kolnr,
             it_t685-kozgf to it_t682i-kozgf.
      append it_t682i.
    endloop.
  endloop.


  select kotabnr
         kolnr
         kozgf
    into table it_t682i
    from T682I
     for all entries in it_t682i
   where kappl = 'V'
     and kolnr eq it_t682i-kolnr
     and kozgf eq it_t682i-kozgf.


  if sy-subrc eq 0.

    select ZPRICE_TYPE
      into table it_price
      from zsd_price_type
       for all entries in it_t682i
     where kotabnr = it_t682i-kotabnr .

***************** Set IS_LIST based on your condition *****************
    Loop at it_price where ZPRICE_TYPE is initial .
      exit.
    endloop.
  endif.
endif.

 endmethod.

Thanks