So i have a Digitech EX-7, and use the power supply that came with it. its in average condition, the wires are very twisted though.

This morning i plugged it into my Multi Chorus and it didn't work then. Now i've come back and put it into my EX-7 and no power happens.

Anyone know what the problem could be?/what i could do about it/to save it?

(i've just untwisted the wire for it, but that didnt do anything)