When Prime Day kicked off at 3 p.m., excited customers were greeted by a stuck home page screen or pictures of a dog, instead of the Prime Day sale. Amazon promoted its sale by featuring selected deals, such as saving $20 on a Fire TV Stick with Alexa Voice Remote, up to 50 percent on men's and women's shoes from such brands as Adidas, New Balance, and Puma, and up to 30 percent off 3-D printers. While trying to search through the more than one million deals, according to the company, the website stalled, causing consumers to complain on Twitter.