OpenUtau vocoder issue

Hello! I just downloaded OpenUtau on MacOS and have the voice POTG DS 3.0. However, every time I try to use the voice it gives me this error message: <img width="969" height="511" alt="Image" src="https://github.com/user-attachments/assets/4acc70ee-eb36-4cff-a251-f1a49c0e9d59" /> i've tried to download the vocoder file it asked me to download, but I have absolutely no clue where to put what and how to. I'm completely new to this stuff. <img width="969" height="88" alt="Image" src="https://github.com/user-attachments/assets/2bb679bb-17d5-4c04-b9bc-5be784498e2c" /> and manually putting it in the POTG DS file doesn't produce much results. could someone please help me? thank you in advance!