srt1000 DECK 2 NO PLAY

THE LAST I KNEW EVERYTHING WAS WORKING FINE. FELL ASLEEP WHEN I GOT UP TO USE THE TABLE AGAIN I LOADED SERATO PRO LOGGED ON LOADED SONG IN DECK 1 AND 2. DECK 2 DOESNT PLAY. EVERYTHING APPEARS AS IT SHOULD BUT BEAT GRID ISNT FILLED IN. I THINK ITS  A SOFTWARE PROBLEM BUT IM NOT SURE