Your crash file link is broken. Anyway this error is always about pointing to data that is not accessable or non existing. It’s probably a programming error where you created the bug through a pointer or reference.
It’s highly unlikely it is anything else. You should post the full log and code if such things happen. If the problem is not in there only then should you think of other causes and start again with other logs, like the system OS error logs and antivirus logs.
If it were a hardware error like faulty RAM you would be bluescreening the entire PC on memory errors. Even then testing it is not a quick scan and swapping to new cards is expensive but easier to do. Without further information any alterations to your system like cleaning / rollbacks / scans are guesswork and more probable to lead to new problems.
I will give the same advice. It’s highly unlikely ram is broken on both PCs. You might simply not be allowed to write to that memory or made the mistake in the code.