Intermittent stutter live performance

During a live performance, my unit went into an “intermittent stutter.” The sound would cut in and out at a very steady rate as if a “mute button” was being pushed. To attempt a fix, I turned the power off and and back on. This only corrected the issue for about 1-2 minutes and then it occurred again. Had to use a Strymon Iridium to get through the rest of the night. Any tips?