Notice: Undefined index: pc_id in /var/www/vtewarehouse/html/manage_cart.php on line 11

Fatal error: Uncaught PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'pc_id' in 'where clause' in /var/www/vtewarehouse/html/manage_cart.php:42 Stack trace: #0 /var/www/vtewarehouse/html/manage_cart.php(42): PDO->prepare('SELECT *, sum(q...') #1 {main} thrown in /var/www/vtewarehouse/html/manage_cart.php on line 42