Printed Circuit Board Pin

Solder a piece of wire whatever on top of the copper trace that isn't mechanically anchored and next time the connector is pulled, the addition will lift peeling copper trace off the board along with it. Seen this twice on other owners boards at my workbench. That's the main reason I suggest a piece of wire soldered to the trace and male/female terminals where applicable. The wire provides something to hold on to and not pull on the copper trace. Or just plan to never pull that harness connector off again. LOL
One could poke a screw or other something with a head through from the underside but that head will need to be both shallow and small diameter to avoid short circuit to the inst' housing underneath. They provided minimal clearance here.