PROBLEM WITH DDJ SZ2 SOUND COLOR FX

I FORGOT MY USB WIRE AT HOME SO I USED A RCA JACK FROM MY LAPTOP TO THE CONSOLE TO PLAY MUSIC ON SERATO AND I DOWNLOADED VIRTUAL DJ TO PLAY SAMPLES, WHEN I GOT A WIRE AND PLUGGED IT BOTH VIRTUAL AND SERATO WAS PLAYING TOGETHER SO I CLOSED VIRTUAL DJ TO USE SERATO BUT TO REALIZE MY SOUND COLOR FX STOPPED WORKING LIKE BEFORE 

WHEN I PRESS 1 OF THE 4 EFFECTS THEY ARE ALREADY MAKING THE EFFECT WITHOUT ME TURNING THE KNOB