Hello! These exceptions are related to erroneous pointer logic/arithmetic. There is not enough contextual information for us to help you, so you might want to post more relevant code, or you could go ahead and protect all of your pointers. Eventually, one protection might fail and you can start from there.
By “protecting a pointer” I mean setting it as the null pointer where appropriate and checking for non-null correctness before dereferencing it, through a function call or using the built-in operator* using a method that allows you to see where/when/how it failed, such as UE4’s ensure(…) macro.