Fatal error: Uncaught mysqli_sql_exception: Duplicate entry 'sonheungmin' for key 'mem_id' in /users/2022/i2251020/public_html/WebDB/06/insert.php:59
Stack trace:
#0 /users/2022/i2251020/public_html/WebDB/06/insert.php(59): mysqli_multi_query()
#1 {main}
thrown in /users/2022/i2251020/public_html/WebDB/06/insert.php on line 59