Fatal error: Uncaught mysqli_sql_exception: Unknown column 'quantity' in 'SELECT' in /var/www/home/content/show_mtg.php:24 Stack trace: #0 /var/www/home/content/show_mtg.php(24): mysqli->query() #1 /var/www/home/index.php(91): include('...') #2 {main} thrown in /var/www/home/content/show_mtg.php on line 24