Unfortunately, there doesn’t seem to be any information in these files to help narrow down this issue.
However, because the output_log does not say “a crash occurred here”, that leads me to think the issue might not be with Last Epoch itself.
Could you please check that Windows, your graphics card drivers and BIOS are up to date? If the issue persists after updates, then I think the issue might be your computer’s power supply. Last Epoch is pretty performance intensive at the moment, so it’s possible that entering The Surface caused a spike in demand that your computer could not handle.
I know this isn’t a nice answer, but given the information that is the most likely answer to me. We’re continuously working on performance, so it’s possible that this will be solved for you in future patches.