Gen 2 Individual battery modules replaced, but still get triangle of death

Thanks for all the info ya everything is original on the car no rust its soild i did a motor swap at 415,000 miles and of course basic repairs and maintenance. i didn't start getting battery pack errors till 430,000 miles. And I'm thinking of just getting another pack. Its cheaper then buying another commute car and I know what I got not someone else's head ache lol