Why is the buttons on my big blue party not working?

Why is the buttons on my big blue party not working?

I turned on my big blue party and none of the buttons are working , not even the power button to take it off …please help me fix this …

ANSWERS:

"You may want to participate in the recall that Brookstone has issued for these speakers. The lithium ion batteries in these speakers can overheat and catch fire, posing a fire hazard. I don’t recommend that you fix your speaker due to that.

https://cpsc.gov/Recalls/2018/brookstone..."