The footswitches on my PitchFactor will stop working after about 30 minutes to an hour from plugging in the power supply. All the knobs seem to function but the footswitches won't engage. Is there anyway I can fix this? I've had the pedal for about a 5 months the problem started 2 months ago; it appeared randomly. I've used the pedal very lightly and have never transported it and have always unplugged all cables after use. Any help would be appreciated. Thanks.