Hi,
sorry there was some python3 error that I just fixed.
You should just update the plugin (Help->Check for stable update) click ok to everything and restart.
The version should be 0.7.682 for autopack.
If you want to load the HIV I suggest you use the dupliVert options. Open the Options widget, and check the item called : "use dupliVert/cloner/particle vs individual instance" this will make the loading way faster in blender.
You should see something like the attached screenshot...
