Permissions issue. It means that the owner of the file is different than the user trying to access it. There are a couple of ways to resolve.
1. From the RGB commander docs (which I don't have) see if it specifies a user account that it runs under. Some applications (like PLEX) setup their own user id as part of their installation process. Once you know which userID it uses, you can change the file owner using the chown command (sudo chown -R <owner> /usr/sbin/rgbcommander).
2. You can also change file attributes so that any user can access it (sudo chmod -R 777 /usr/sbin/rgbcommander). This is generally not recommended on systems with more than a single user as it grants access to all but as I expect this is a dedicated arcade device this would not be a concern.