I purchased one of these used two weeks ago, and yesterday, i noticed excessive buzzing, (more than usual lol) and so I tapped the pedal with my foot and it increased (the noise). So I tapped it again, and the buzzing became deafening and wouldn't stop until I turned off my amp.

What exactly could be wrong with it and would it be cheaper to repair it? (and easy enough by myself.. since I am broke.) Or should I just cry and get rid of it?
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