Набір викруток (6 шт)

Ошибка базы данных WordPress: [syntax error, unexpected ')', expecting $end]
SELECT DISTINCT p.ID FROM wp_posts p INNER JOIN wp_postmeta pm ON p.ID = pm.post_id WHERE p.post_type = 'product' AND p.post_status = 'publish' AND p.ID != 421725 AND pm.meta_key = '_stock_status' AND pm.meta_value = 'instock' AND MATCH(p.post_title) AGAINST('Набір викруток шт)' IN BOOLEAN MODE) LIMIT 8