Discuz! Database Error

(1290) The MySQL server is running with the --rds-deny-access option so it cannot execute this statement
SELECT * FROM common_cron WHERE available>'0' AND nextrun<='1575783314' ORDER BY nextrun LIMIT 1

PHP Debug

No.FileLineCode
1portal.php18discuz_application->init()
2source/class/discuz/discuz_application.php70discuz_application->_init_cron()
3source/class/discuz/discuz_application.php551discuz_cron::run()
4source/class/discuz/discuz_cron.php19table_common_cron->fetch_nextrun(%d)
5source/class/table/table_common_cron.php26discuz_database::fetch_first(%s)
6source/class/discuz/discuz_database.php92discuz_database::query(%s, Array, false, false)
7source/class/discuz/discuz_database.php137db_driver_mysqli->query(%s, false, false)
8source/class/db/db_driver_mysqli.php147db_driver_mysqli->halt(%s, %d, %s)
9source/class/db/db_driver_mysqli.php222break()
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