Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /var/www/vhosts/giievent.kr/dev.giievent.kr/php/order_ClassData.php:64 Stack trace: #0 /var/www/vhosts/giievent.kr/dev.giievent.kr/php/order.php(13): UserData->set_data() #1 {main} thrown in /var/www/vhosts/giievent.kr/dev.giievent.kr/php/order_ClassData.php on line 64