Common.lib.php에러

Fatal error: Uncaught mysqli_sql_exception: Duplicate entry '2024-08-27' for key 'g5_visit_sum.PRIMARY' in /hosting/herrobot/html/lib/common.lib.php:1602 Stack trace: #0 /hosting/herrobot/html/lib/common.lib.php(1602): mysqli_query() #1 /hosting/herrobot/html/bbs/visit_insert.inc.php(30): sql_query() #2 /hosting/herrobot/html/common.php(680): include_once('...') #3 /hosting/herrobot/html/_common.php(2): include_once('...') #4 /hosting/herrobot/html/index.php(2): include_once('...') #5 {main} thrown in /hosting/herrobot/html/lib/common.lib.php on line 1602

사이트에 접속후 계속 이렇게 뜨는데 어떻게 고쳐야 되는지 모르겠어요