Some server difficulties arose yesterday and was resolved, but I attempted some additional maintenance and that was unsuccessful which took the web site down. So the server has been rolled back to it's previous state and is now back on line. This server operating system is actually pretty old and has been upgraded repeatedly over the years, but that underlying age is catching up to it so it's apparently reached the point where it's time to simply create a brand new server and migrate all services to it, including this site. So that's on the to-do list in the coming weeks. When that's done, there shouldn't be any noticeable outage.
Apologies for the downtime.