The following problems were found:

• You cannot add "Water Resistant Chest Pack - Running Vest for Workouts, Running Phone Holder Extra Storage, Lightweight Running Pack" to the cart because the product is out of stock.
• You cannot add "UFO 4000 Mini Drone for Kids - LED Remote Control Drone, Small RC Quadcopter for Beginners, 2.4Ghz Remote Control, 360 Flips, 2 Speed UFO Flying Toy for Kids, 2 RC Toy Batteries" to the cart because the product is out of stock.
• You cannot add "15.6 Inch Laptop with Office 365, 4GB RAM, 128GB Storage Expandable 1TB, 5205U Processor, HD Display, Windows 11 Laptops Computer, Wi-Fi 5, BT4.2, Numpad, Type-C, for Business and Students." to the cart because the product is out of stock.
• You cannot add "ROG Strix G16 Gaming Laptop, 165Hz Display, NVIDIA® Geforce RTX™ 4060, Intel Core I7-13650Hx, 16GB DDR5, 1TB Pcie Gen4 SSD, Wi-Fi 6E, Windows 11, G614JV-AS74" to the cart because the product is out of stock.