Database Error; SQL: SELECT DISTINCT `t`.* FROM `wp_posts` AS `t` LEFT JOIN `wp_term_relationships` AS `polylang_languages` ON `polylang_languages`.`object_id` = `t`.`ID` AND `polylang_languages`.`term_taxonomy_id` = 5 WHERE ( ( t.post_title = ) AND ( `t`.`post_type` = 'advent_gift' ) AND ( `polylang_languages`.`object_id` IS NOT NULL ) AND ( `t`.`post_status` IN ( 'publish' ) ) ) ORDER BY `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` = 'advent_gift' ) AND ( `polylang_languages`.`object_...' at line 11