string(654) "Database Error; SQL: SELECT
                
                DISTINCT
                `t`.*
                FROM `awp_posts` AS `t`
                
					LEFT JOIN `awp_postmeta` AS `display_order` ON
						`display_order`.`meta_key` = 'display_order'
						AND `display_order`.`post_id` = `t`.`ID`
				
                WHERE ( ( `t`.`post_status` IN ( 'publish' ) ) AND ( `t`.`post_type` = 'publication' ) )
                
                
                ORDER BY `date`.`meta_value` desc, CAST(`display_order`.`meta_value` AS SIGNED ), `t`.`menu_order`, `t`.`post_title`, `t`.`post_date`; Response: Unknown column 'date.meta_value' in 'order clause'"

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