f4 help giving dump in spanish

hi,

i have used F4 help in alv using oops which is working fine for english, but when i logon through spanish below mentioned method is throwing dump :

CALL METHOD f4_alv->set_table_for_first_display

EXPORTING

is_layout = ls_layout

CHANGING

it_fieldcatalog = fieldcatalog

it_outtab = f4_itab.

please help!