My have a board doesn’t turn on

My have a board doesn’t turn on

I was using my hover board until one day I went out to the park with it and it started turning off every 30 seconds and then Suddenly didn’t turn on anymore So I turned it off completely and then tried to charge it for an hour and hour later it’s a turn on anymore and I’ve been like this for a year can anybody help me I don’t know what to do now .I loved my Hoverboard are used it every day.