string(1170) "Database Error; SQL: SELECT
DISTINCT
`t`.*
FROM `wp_posts` AS `t`
LEFT JOIN `wp_podsrel` AS `rel_parent_title` ON
`rel_parent_title`.`field_id` = 1343
AND `rel_parent_title`.`item_id` = `t`.`ID`
LEFT JOIN `wp_posts` AS `parent_title` ON
`parent_title`.`ID` = `rel_parent_title`.`related_item_id`
LEFT JOIN `wp_postmeta` AS `publication_year` ON
`publication_year`.`meta_key` = 'publication_year'
AND `publication_year`.`post_id` = `t`.`ID`
LEFT JOIN `wp_postmeta` AS `index_title` ON
`index_title`.`meta_key` = 'index_title'
AND `index_title`.`post_id` = `t`.`ID`
WHERE ( ( `parent_title`.`post_title` IS NULL AND `publication_year`.`meta_value`=Array ) AND ( `t`.`post_type` = 'title' ) AND ( `t`.`post_status` IN ( 'publish' ) ) )
ORDER BY `index_title`.`meta_value` ASC, `t`.`menu_order`, `t`.`post_title`, `t`.`post_date`
LIMIT 0, 1; Response: Unknown column 'Array' in 'where clause'"
