[DDJ RB] suddenly stopped working

hi, my name is agus Sulistiyanto

I have a complaint,
after I play pioneer ddj rb with stereo speakers for 3 hours, my controller suddenly can not press every button and the sound out to the speakers also stop but rekordbox application still running well, there button lights just turn on the button master cue with very bright, 2x brighter than usual. after i restart my rd ddj, all fine fine. will it happen again, I'm worried about when I'm performing on stage?

please help me by providing information on this.thank you