Fatal error: Uncaught Error: Typed property Product\ERP\Product::$discount_group must not be accessed before initialization in /var/www/vhosts/novashape.com/subdomains/hkn.novashape.com/classes/Product/ERP/Product.php:213 Stack trace: #0 /var/www/vhosts/novashape.com/subdomains/hkn.novashape.com/classes/Product/ERP/Product.php(60): Product\ERP\Product->loadData() #1 /var/www/vhosts/novashape.com/subdomains/hkn.novashape.com/modules/erp_product/index.php(6): Product\ERP\Product->__construct() #2 /var/www/vhosts/novashape.com/subdomains/hkn.novashape.com/index.php(17): require_once('...') #3 {main} thrown in /var/www/vhosts/novashape.com/subdomains/hkn.novashape.com/classes/Product/ERP/Product.php on line 213