Short text
    Field symbol has not yet been assigned.

What happened?
    Error in the ABAP Application Program

    The current ABAP program "SAPLSLVC" had to be terminated because it has
    come across a statement that unfortunately cannot be executed.

Error analysis
    You attempted to access an unassigned field symbol
    (data segment 32821).

    This error may occur if
    - You address a typed field symbol before it has been set with
      ASSIGN
    - You address a field symbol that pointed to the line of an
      internal table that was deleted
    - You address a field symbol that was previously reset using
      UNASSIGN or that pointed to a local field that no
      longer exists
    - You address a global function interface, although the
      respective function module is not active - that is, is
      not in the list of active calls. The list of active calls
      can be taken from this short dump.

Trigger Location of Runtime Error
    Program                                 SAPLSLVC
    Include                                 LSLVCF36
    Row                                     3,267
    Module type                             (FORM)
    Module Name                             FILL_DATA_TABLE
Source Code Extract

Line  SourceCde

 3237                               alv_style_align_center_top.
 3238         endif.
 3239
 3240         append ls_lvc_data to ct_lvc_data.
 3241       endif.
 3242
 3243 ************************************
 3244 * Column per Fieldcat Entry
 3245 ************************************
 3246       loop at it_fcat_local assigning <ls_fcat>.
 3247         clear: ls_lvc_data-href_hndl,
 3248                ls_lvc_data-drdn_hndl,
 3249                ls_lvc_data-style,
 3250                ls_lvc_data-style2,
 3251                ls_lvc_data-style3,
 3252                ls_lvc_data-style4,
 3253                ls_lvc_data-maxlen.
 3254
 3255         clear: lt_color_lvc, lt_color_slis.
 3256
 3257         add 1 to ls_lvc_data-col_pos.
 3258
 3259         if not <ls_fcat>-indx_field is initial.
 3260           assign component <ls_fcat>-indx_field
 3261                            of structure <ls_data> to <l_field_value>.
 3262         else.
 3263           assign component <ls_fcat>-fieldname
 3264                            of structure <ls_data> to <l_field_value>.
 3265         endif.
>>>>>         macro_cell_data_get
 3268           <ls_fcat>
 3269           <ls_data>
 3270           <l_field_value>
 3271           ls_lvc_data-value.
 3272
 3273 *>>> new API
 3274         if ir_salv_adapter is bound.
 3275           clear ls_lvc_data-style.
 3276
 3277 * color
 3278           if g_gui_type ne 1.
 3279             if <ls_fcat>-key eq abap_true.
 3280               ls_lvc_data-style = alv_style_color_int_key.
 3281             elseif l_style_color is initial
 3282                   and ( <ls_fcat>-emphasize is initial or
 3283                         <ls_fcat>-emphasize = '$' ).
 3284               if <ls_stin>-counter is initial.
 3285                 ls_lvc_data-style = alv_style_color_normal.
 3286               else.

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