IHOP review: credit card system down for 5+ days

How can a major restaurant not have the ability to repair their credit card processing equipment in a day or two? This is clearly a way for someone to take tax free cash grabs. This needs to be addressed by corporate. This also creates a major inconvenience for customers. In this day and age, who carries a lot of cash anymore. The host was explaining how difficult it is to get the payment processor repaired, really? Just send a new one and swap it out!