2xbass

Hi there! I'm a bit stumped by a ProcessWire site which has suddenly, apparently without any changes to the site or the environment, stopped working. What's happening is that although the root site is working, all links to other paths, including the admin URL, are all resulting in 404 errors. As far as I know, nothing has changed at all. I'm an experienced PHP developer but know very little about ProcessWire. As far as I can see, the errors are coming from inside ProcessWire. There's nothing in the Apache or ProcessWire logs that I could see and I even enabled $config->debug in site/config.php. If I create an index.html in a directory that is a sibling of the site directory, it is served up fine by Apache. Thanks for any pointers anyone can provide to help me debug this or get the the site working again.