Fatal error: Uncaught TypeError: Argument 1 passed to Main_Controller::setRegionalPricingVariables() must be of the type string, null given, called in /var/www/app/store/core/main_controller.php on line 488 and defined in /var/www/app/store/core/main_controller.php:553 Stack trace: #0 /var/www/app/store/core/main_controller.php(488): Main_Controller->setRegionalPricingVariables(NULL, 0.78508, 0.94536) #1 /var/www/app/store/core/main_controller.php(140): Main_Controller->initialize() #2 /var/www/app/store/core/cart_controller.php(14): Main_Controller->__construct() #3 /var/www/app/store/controllers/category.php(10): Cart_Controller->__construct() #4 /var/www/system/core/CodeIgniter.php(308): Category->__construct() #5 /var/www/app/store/public/index.php(168): require_once('/var/www/system...') #6 {main} thrown in /var/www/app/store/core/main_controller.php on line 553