hey everyone!

i have a cheap livewire multichannel footswitch for my Traynor YCV40 and the last time I used it, the amp would stop reading the switch was plugged in and switch back to the previous channel. I think it might be a loose wire in the cable to connect the cable to the amp, but I don't know how to go about fixing it (too broke right now to buy a new one). does anyone have any tips/suggestions to fix this? I'm pretty noob to this, so any help is appreciated