Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /var/www/vhosts/giikorea.co.kr/dev.giikorea.co.kr/php/product_list_class.php:570 Stack trace: #0 /var/www/vhosts/giikorea.co.kr/dev.giikorea.co.kr/php/product_list_class.php(570): in_array() #1 /var/www/vhosts/giikorea.co.kr/dev.giikorea.co.kr/php/category.php(31): category->__construct() #2 {main} thrown in /var/www/vhosts/giikorea.co.kr/dev.giikorea.co.kr/php/product_list_class.php on line 570