Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Try unplugging it from the power, for at least 20 minutes, to let it cool off, rest and reset.
If that isn't a satisfactory option for whatever reason, let me know. (If it is running on batteries, then pull the batteries out instead, of course.)
Let me know how it goes, please. Thanks.