Local lava server doesnt work

[ClaraCrazy]

Using a local lavalink install and just using either "localhost", "127.0.0.1" or the public IP fails. with

(node:23520) UnhandledPromiseRejectionWarning: TypeError [ERR_HTTP_INVALID_HEADER_VALUE]: Invalid value "undefined" for header "Authorization" at ClientRequest.setHeader (_http_outgoing.js:561:3) at new ClientRequest (_http_client.js:251:14) at request (http.js:50:10) at get (http.js:54:15) at initAsClient (C:\Users\fisch\Desktop\Discord-MusicBot-master\node_modules\ws\lib\websocket.js:675:31) at new WebSocket (C:\Users\fisch\Desktop\Discord-MusicBot-master\node_modules\ws\lib\websocket.js:71:7) at Node.connect (C:\Users\fisch\Desktop\Discord-MusicBot-master\node_modules\erela.js\dist\structures\Node.js:115:23) at Manager.init (C:\Users\fisch\Desktop\Discord-MusicBot-master\node_modules\erela.js\dist\structures\Manager.js:119:18) at module.exports (C:\Users\fisch\Desktop\Discord-MusicBot-master\events\ready.js:10:20) at DiscordMusicBot.emit (events.js:315:20) (Usenode --trace-warnings ...to show where the warning was created) (node:23520) 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: 1) (node:23520) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[ClaraCrazy]

nah i was just dumb

[ViraajRandhawa]

Im having this problem what'd u do to fix it?