For those that are seeing this issue, is it Windows, Pi, or both? Does the tone detection still function when this occurs?
FYI I've identified a bug that can cause TTD to crash after it's generated a large amount of audio files...typically several weeks of operation on a busy system without restarting. I have a fix in testing now that should be out soon. One symptom of this issues is that the web page doesn't work, but neither does tone detection. If there's a different issue where the web page doesn't work but tone detection does, that's something different I'll need to look into.
Andy
Tone detection works fine; 404 error.