At last night's gig, I suddenly got no sound out of my pedal board, while someone else who was playing through the same amplifier had full sound. The sound stayed out for the rest of the song. I checked all the connections and everything was plugged in. I unplugged and plugged things back in and at a certain point the sound was back. I have a big gig coming up and can't afford to have this happen. Any ideas about what is going on and how to fix it?

Music - Roland - Boss BCB-60 Pedal Board