Database Error; SQL: SELECT
DISTINCT
`t`.*
FROM `wp_posts` AS `t`
LEFT JOIN `wp_podsrel` AS `rel_parent_category` ON
`rel_parent_category`.`field_id` = 18
AND `rel_parent_category`.`item_id` = `t`.`ID`
LEFT JOIN `wp_posts` AS `parent_category` ON
`parent_category`.`ID` = `rel_parent_category`.`related_item_id`
LEFT JOIN `wp_postmeta` AS `order_number` ON
`order_number`.`meta_key` = 'order_number'
AND `order_number`.`post_id` = `t`.`ID`
LEFT JOIN `wp_term_relationships` AS `polylang_languages`
ON `polylang_languages`.`object_id` = `t`.`ID`
AND `polylang_languages`.`term_taxonomy_id` = 6
WHERE ( ( `parent_category`.`ID` = ) AND ( `t`.`post_type` = 'business_subcategory' ) AND ( `polylang_languages`.`object_id` IS NOT NULL ) AND ( `t`.`post_status` IN ( 'publish' ) ) )
ORDER BY `order_number`.`meta_value` ASC, `t`.`menu_order`, `t`.`post_title`, `t`.`post_date`
LIMIT 0, 15; Response: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ') AND ( `t`.`post_type` = 'business_subcategory' ) AND ( `polylang_languages`...' at line 24 
