Somebody tried to fetch /mshaw/ (or /mshaw/index.html), that's all it means.

Your ps output shows that you have two httpds running, the question is which one is bound to port 80, and whether you can safely kill that one and start the one you want on that port. It's refusing to start because the port is already in use because you already have one httpd (aka apache) running. You can't have two server processes on the same single port.