hldj.org

I had HLDJ up and working for a bit and was adding new audio, then I accidentally exit out of HLDJ. I go back to it, and it says Settings do not exist, I thought "I already did this?". Everything was gone, I tried setting it back up now all it says when I pless play audio is Unknown command: hldj_playaudio. I've tried everything. Nothing.

screenshot the contents of the folder you've installed it to.
re-downloading and unpacking to a new folder would likely fix whatever is up.