PROBLEM WITH XDJ AERO

Hello i bought xdj aero a few weeks ago and this week was my first gig at one club after playing 2 hours it bugged and i cannot browse the tracks it just blocked and the music stopped so i got question what i could be usb or the controller( usb is formatted fat 32 oke,becouse all comments are for that) please if you know what to check reply me thanks :)