Fatal error: Uncaught Error: Undefined constant CustomError::PRODUCT_CATEGORY_NOT_FOUND in /var/www/vhosts/sanjayplastics.com/httpdocs/classes/ProductCategory.php:69 Stack trace: #0 /var/www/vhosts/sanjayplastics.com/httpdocs/page-products.php(10): ProductCategory->__construct() #1 {main} thrown in /var/www/vhosts/sanjayplastics.com/httpdocs/classes/ProductCategory.php on line 69