insert into counter set visit_date = '2019-04-22 13:01:07', visit_url = 'www.chamtntn.co.kr/chamtntn/sub1/3.php', visit_ip = '18.212.239.56'

1062 : Duplicate entry '2019-04-22 13:01:07' for key 1

error file : /chamtntn/sub1/3.php