1054 - Unknown column 'popt.products_options_sortorder' in 'order clause'

select distinct popt.products_options_id, popt.products_options_name from products_options popt, products_attributes patrib where patrib.products_id='2833' and patrib.options_id = popt.products_options_id and popt.language_id = '2' order by popt.products_options_sortorder, popt.products_options_id

[XT SQL Error]