Two effect knobs on my mixtrack arent working, any ideas?

Two effect knobs on my mixtrack arent working, any ideas?

One is on the A side controlling scrolling thru the effects, just doesnt scroll. The other is controlling the active effect on the B side, does anyone know where i could find information to how i could fix this?

buuumping

After sales service ? Or maybe calling/emailing numark

double check the mapping and make sure it’s right…

I did double check. There is no input shown when they are moved, i bought it off of craigslist and it was working when i bought it but since im not the original owner idk how much they will do for me