insert into counter set visit_date = '2019-05-23 11:37:44', visit_url = 'www.tntnhospital.co.kr/sub8/1_3.php', visit_ip = '3.85.143.239'

1062 : Duplicate entry '2019-05-23 11:37:44' for key 1

error file : /sub8/1_3.php