Hi techdruid. I’m experiencing the same problem too. And it doesn’t help that the support site has a malware.
You managed to get the plugin working for yourself? I don’t understand PHP at all so I’m trying to work slog through the code myself, haha.
How did you do it? You simply change the line to $value = get_user_meta( $user_ID, $id, true ); ?
Do you know what the error message means, in non-computer language?