likely there is other damage on one or more of the boards.
Unfortunately this type of repair is beyond the remit of a forum - this needs a hands-on approach and test/measurement procedures that can't readily be talked through.
As a basic minimum you'd have to dismantle the boards and show clear close-up images of both sides of each board and also have them interconnected, potentially requiring longer inter-board connectors.
It's the kind of stuff I do 'for fun' these days - when I get a break from my work that is.
As much as we'd like to take this further I don't think we'd get past the board inspection/layout point let alone into the potential for taking test measurements. The best you could do is ensure all the connections are clean, firmly in place and make a visual check for any visibly 'broken' part.
