DDJ-SZ sample pads not lighting up

I use the DDJ-SZ and the lights on the sample pads dont light up anymore. I was cleaning it and i dont know if i hit a button to turn it off or they just went out. Everything lights up fine when i turn it on, but theyre not on when im mixing anymore. I also think the roll and sample pads dont work when i push them. Any info is appreciated. Thanks!