Hi, I was playing guitar with my amp spider 3 and when changing channels with the pedal FVB express the amplifier became stuck and did not emit sounds and no buttons worked. I decided to turn it off and on, but when I turned it back on no buttons lit up and even the saved presets would not load. the preset display only had a few black boxes. please help this is the only thing that can work at this time and it cost me a lot to have this amp. because i do not want to lose it, thanks in advance.