I'm sorry about the issue. Please press and hold (or slide and hold) the power on / off button / switch on your kindle for about 45 seconds, then turn it back on and check.
Please reply at the box below to continue. Thank you,
After doing the step above, what is showing on the kindle's screen now?
Please type at the box below, then click on the Send button below to communicate with me, so I can help further. Thank you,