How to free memory without getting an unhandled exception error?

Question

For a while now, I have been plagued with unhandled exception errors whenever I run functions or statements that remove an object from a vector. These are often for things such as enemies or bullets, stuff you would normally want to free memory from in order to provide room for incoming memory. What I want to know is how to properly free memory while a program is running so that I do not encounter another error.

Answer 1

maybe just debug it?