If the traces are damaged the best way is to solder wires along the traces to bypass them. You could also try a silver "circuit pen", like this: https://www.amazon.com/Circuit-Scribe-Non-Toxic-Conductive-Silver/dp/B00OZATJ3A

If you don't have a soldering iron, then you might look for electronics hobbyist groups or phone repair shops near you.

I'm also seeing some of these on ebay for around ~30 usd, which is pretty affordable.

If all else fails, I have a side gig doing repairs on keyboards, but I'm concerned the shipping would be unreasonable. Drop me a line at bradmakeskeyboards.com.

Check this out: Circuit Scribe Non-Toxic Conductive Silver Ink Pen – Award Winni... https://www.amazon.com/dp/B00OZATJ3A/ref=cm_sw_r_sms_awdb_t1_7raGEb4BVHBBV

how would this pen work? https://www.amazon.com/Circuit-Scribe-Non-Toxic-Conductive-Silver/dp/B00OZATJ3A

I have soldering stuff before, Mostly gameboy advances and what not but this pen seems neat.