An Error Was Encountered

Error Number: 1690

BIGINT UNSIGNED value is out of range in '(`terra`.`items_t2`.`size_full` - 840)'

SELECT * FROM `items`,`items_t2` WHERE `items`.`id`=`items_t2`.`id_item` AND (`items`.`id`!=437) AND (`items`.`region`=15) ORDER BY ABS(`items_t2`.`kpp_distance`-0) ASC,ABS(`items`.`price`-800000) ASC,ABS(`items_t2`.`size_full`-840) ASC,`items`.`id` DESC LIMIT 20