@Jas0n, I have found no out_put.log, probably because KSP would have no time to make or save the log because it is an unexpected force shutdown. About that error code, I'd need to have it happen again.
I agree, my processor is underpowered, but I do optimization. Total CPU usage never goes above 85%, and memory pressure does not get above 70%.
Edit: There was no error code, and it still happened when KSP was not open! Memory usage was very low, CPU usage was very low, and there was no heating.