Thank you for your answer. The reason I did that is because I couldn’t make the pedal work by soldering the ground wires to the sleeve. The reason why the pedal is not working anymore is because I wanted to tidy up the whole thing and had to unsolder a few wires. I must have messed something up while resoldering those.
P.S. – I short circuited the battery prior to having the current wiring of the pedal, could it have affected some of the components?