Fatal error: Uncaught mysqli_sql_exception: Unknown column 'counter' in 'field list' in C:\xampp\htdocs\show.php:11 Stack trace: #0 C:\xampp\htdocs\show.php(11): mysqli_query(Object(mysqli), 'update nashra s...') #1 {main} thrown in C:\xampp\htdocs\show.php on line 11