WordPress database error: [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 'k.users <> 0 AND p.date = '2020-04-08 00:00:00' AND k.date = '2020-04-07 00:00:0' at line 3]SELECT DISTINCT p.series_num FROM dxcn_gastat_crn as p CROSS JOIN dxcn_gastat_crn as k WHERE 1=1 k.users <> 0 AND p.date = '2020-04-08 00:00:00' AND k.date = '2020-04-07 00:00:00' ORDER BY ((p.users - k.users)/k.users) DESC LIMIT 20