Trying to fix a very minor bug of a game of solitude of c heard from this site. It is somewhere it must be missng a range check causing a core dump (or whateve

Trying to fix a very minor bug of a game of solitude of c heard from this site. It is somewhere it must be missng a range check causing a core dump (or whatever the name linux/macOS gave to the MVS thing). The problem is where is it. 2 days now.