TV volume working but cant turn off, I get this error? Any help pls?

[SeanHama]

TV is off or unavailable
(node:11771) UnhandledPromiseRejectionWarning: Error: connect ECONNREFUSED 192.168.0.169:8002
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1148:16)
(node:11771) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 3)