Identify and stop the process that's listening on port 9996 or configure this application to listen on another port.

To identify and stop the process that's listening on port 9996 on a Linux or macOS system, you can use the following command in the terminal:

sudo lsof -i :9996

This will list the process or processes that are listening on port 9996. Once you have identified the process, you can stop it using the following command:

sudo kill <PID>

Replace `<PID>` with the process ID of the process you want to stop.

If you want to configure the application to listen on another port, you will need to consult the application documentation or configuration files to find out how to do this.