Chosen Solution

I can’t get into the kindle store to buy a book

You can only access the kindle book store if you are on the latest firmware, on some older devices you will have to update manually by downloading the firmware from the amazon kindle website and installing it onto the device, once you are on the most recent firmware you will be able to access the Kindle Book store again. Go to this website and select your kindle… https://www.amazon.com/gp/help/customer/