Fatal error: Uncaught mysqli_sql_exception: Unknown column 'diemvip' in 'order clause' in C:\xampp\htdocs\BXHdiemvip.php:39
Stack trace:
#0 C:\xampp\htdocs\BXHdiemvip.php(39): mysqli->query('SELECT * FROM n...')
#1 {main}
thrown in C:\xampp\htdocs\BXHdiemvip.php on line 39