Huion Inspiroy H640P not connecting properly

Hello! Yesterday when I tried to use my Huion H640p, it kept lagging. I thought it was my art program and I updated and it still lagged, I updated my driver, restarted my pc and unplugged my tablet, but it kept lagging. I noticed the light to show if the pen is picking up was flickering and not picking up properly. I tried to change my nibs but nothing works, it only works sometimes at an angle. Any help??? It worked perfectly the day before :(