Warning: Undefined array key "cart" in /home/huvuptvitrxff/www/models/user/Products.php on line 83

Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, null given in /home/huvuptvitrxff/www/models/user/Products.php:83 Stack trace: #0 /home/huvuptvitrxff/www/controllers/user/CartController.php(39): Products->delete_product_from_cart(50) #1 /home/huvuptvitrxff/www/controllers/user/CartController.php(14): CartController::delete() #2 /home/huvuptvitrxff/www/configs/routes.php(31): CartController::handleRoute(Array) #3 /home/huvuptvitrxff/www/index.php(14): require_once('/home/huvuptvit...') #4 {main} thrown in /home/huvuptvitrxff/www/models/user/Products.php on line 83