WordPress データベースエラー: [You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%i
WHERE status in ('wc-completed', 'wc-refunded')' at line 3]
SELECT SUM(total_amount)
AS 'gross_total'
FROM %i
WHERE status in ('wc-completed', 'wc-refunded')
