Fatal error: Uncaught ArgumentCountError: mysqli_query() expects at least 2 arguments, 1 given in /home3/hiokihhk/public_html/add_to_cart.php:257 Stack trace: #0 /home3/hiokihhk/public_html/add_to_cart.php(257): mysqli_query('SELECT * from c...') #1 {main} thrown in /home3/hiokihhk/public_html/add_to_cart.php on line 257