Hello. I recently purchased a Lido bingo machine. Its been working fine for around an hour or so, then a few problems started to arise. First of all, the ball doesn't lift automatically anymore but the manual lift button works. When I start a new game and lift the ball up manually, I shoot it, but the shutter is staying open only for the first ball. Right when I lift another ball up, the shutter closes. Throughout the whole game play the ball doesn't lift automatically. Any ideas how I can fix this?