wp cron job fires at every second or so, if callback is wrapped with DOING_CRON check it never fires at all

wp cron job fires at every second or so, if callback is wrapped with DOING_CRON check it never fires at all

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)