So my trusty shiva suddenly died at rehearsal tonight. Mid song, I heard the sound similar to that of the mechanical relay that switches channels and suddenly my sound cut out. I heard the click again, and the sound resumed. 5 mins or so goes by, and I hear the click again and the sound drops out, but this time, it didn't come back on. The amp continued to click every so often. I disconnected my rack and my pedalboard and plugged directly into the amps input to rule these out. Still no luck. I even checked and swapped my cables to see it that was the issue. Nothing. Does this sound like something that points to any one problem in particular?