mixtrack pro

watsup guys . having a problem with my mixtrack pro controller, everything is fine but sometimes and it rarely happens but its happened alot recently.. when im playin during a set lately, the music cuts out and i have to unplug my controller and close and open traktor again . i cant afford that now though since my gig list is getting really full nowadays. any idea why my controller freezes or the music turns off? bothering me. oh and im using a mac