Monomachine broken trace repair

Elektron Gear Monomachine
#1

Just recently built a rack for my monomachine, like an idiot I screwed the screws too far causing a trace to break.

Buttons “Edit up” and “Track 5” no longer respond. I’ve tried fixing it by trying to solder a wire to form a bridge, but I can’t seem to get the solder to flow !

Anyone have any tips ?

Lower right of PCB:

IMG_20151205_141520.jpg1920×2560 952 KB


Upper right of PCB:
IMG_20151205_141528.jpg1920×2560 878 KB

#2

Have never had to do anything like that before, but something like this?

#3

Previous experiences of the same issue:
http://www.elektronauts.com/t/beware-screwing-into-ear-rack-holes/4504