I let my nephew play with my tamagotchi while I got ready for dance. My mom called me and said she thought my tama was dead or something. When I came out, it was beeping like someone was holding down a button. So I looked at it and it was like someone was holding down the A button. It won't stop beeping. I took out the battery and put it back in, but it starts up again. I think the button is sticking. How do I make it stop???