Read and follow the instructions carefully - don't pass the bluetooth address as a parameter when you are the root user, pass it only when you are the normal user "user". Then switch to root and run install.sh again but this time *without* the bluetooth parameter.

If I get time maybe I'll change the script so that you only need to run install.sh once as user (and have it switch to root automatically when required) but for now it's a two step process that requires you to follow the instructions.