Colleague, you will forgive me, but I want to say that the memory of you eats the evil Alzheimer's. You can put a shot, but it is unlikely to help, but without the debugger.
But seriously, where are the technical details? At least the platform name!
If everything is top secret, then read about valgrind for nix systems or Application Verifier for Windows.
Also pay attention to those libraries and modules that you use in your project.
It is possible to advise to write your own code using smart pointers or even without them, this often helps.
Success and clean code!