datablock AudioProfile(Buzz_01_)
{
filename = "./Buzz_01.wav";
description = AudioClosest3d;
preload = false;
};
datablock AudioProfile(Buzz_02 : Buzz_01)
{
filename = "./Buzz_02.wav";
};
Issues
1. You're parenting Buzz_01, but there is no Buzz_01. You have Buzz_01_ instead (you misspelled it).
2. You've packaged the folder in the zip file. Just zip up the contents of the add-on, don't put it in a folder then zip that up instead.