The following problems were found:

• You cannot add "WH-CH720N Noise Canceling Wireless Headphones Bluetooth over the Ear Headset with Microphone and Alexa Built-In, Black New" to the cart because the product is out of stock.
• You cannot add "Compatible with Lego Toy Building Block, Vibrant Colors, 336 Pieces, Classic Bricks Building Starter Kit for Kids, 100% Compatible with All Major Brick Brands" to the cart because the product is out of stock.
• You cannot add "14K Gold Plated Interlocked Stackable Rings for Women - Statement Mixed Metals Multi Ring Stack - Cubic Zirconia Two-Toned Connected Bands Stacking Jewelry" to the cart because the product is out of stock.