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3065 Expression #1 of ORDER BY clause is not in SELECT list, references column 'maralusa_maralusa.popt.products_options_sort_order' which is not in SELECT list; this is incompatible with DISTINCT
in:
[select distinct popt.products_options_id, popt.products_options_name, popt.products_options_track_stock from products_options popt, products_attributes patrib where patrib.products_id='15' and patrib.options_id = popt.products_options_id and popt.language_id =4 and popt.products_options_track_stock = '1' order by popt.products_options_sort_order]