My name is ***** ***** certified professional with over 10 years experience. I will be glad to assist you with this.
I am sorry to hear that you are having this issue.
First make sure the Kindle has a good Wi-Fi connection and can connect to the Internet. Then do a restart by holding the power button down for about 30 seconds, until you see the "Kindle Fire" logo appear. Let it reboot then open it and see if that fixed the problem.
Please let me know if this does not work or if you need any other assistance.
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Thank you very much!