Does anyone have a corded shark and it's suddenly stopped working? I was vacuuming before and all the lights went out and it stopped. It came back on briefly then went off again and hasn't worked since. I've checked and everything is in place and I've tried a fmdifferebtbpiwer outlet but it's just not working. I'm devastated. does anyone have nay ideas in what might be wrong? I've only had it 3 months