I have a problem of my own making, I have bought the sammich kit and in my eagerness to build it I had not noticed the temperature control on my iron was way to high and I have lifted a trace off the pcb.
well as long as it’s only one single trace that is damaged, you can always fix it with a piece of isolated wire. Just solder one end of the wire to the pin/pad where the damage occured, follow the trace to the next place where it goes into another pad, and solder the other end of the wire there.
Another way of fixing ripped off pads is to scratch off the (red) solder mask laquer from the trace end for maybe 5-10 mm, apply solder to the copper of the trace, bend a short piece of wire or a leftover resistor leg that crosses the gap, and solder this piece between the pad and the trace.
Buying a new PCB and starting all over is a bit of an overkill as long as you didn’t kill half of the traces