Jisti is disconnected

Hello,
please i’m installed jitsi in docker,
and when i open the room i got the “disconnected” message
and the error in the console is

go:53 (TIME) index.html loaded:	 16050.5
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:44:55.086Z [modules/browser/BrowserCapabilities.js] <new a>:  This appears to be chrome, ver: 91.0.4472.114
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:44:55.157Z [modules/RTC/RTCUtils.js] list of media devices has changed: Array(8)
app.bundle.min.js?v=5056:182 2021-07-16T20:45:13.810Z [features/base/redux] <Object.persistState>:  redux state persisted. acdef067f6558b52c287070d682e58c8 -> c049f4291191cb378ebe9a3b63238fbd
app.bundle.min.js?v=5056:182 2021-07-16T20:45:13.849Z [features/base/config] Extending config with: {"startWithAudioMuted":false,"startWithVideoMuted":true}
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:13.855Z [modules/RTC/RTCUtils.js] <$.init>:  Disable AP: false
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:13.859Z [modules/statistics/AnalyticsAdapter.js] <Object.dispose>:  Disposing of analytics adapter.
o @ lib-jitsi-meet.min.js?v=5056:10
app.bundle.min.js?v=5056:182 2021-07-16T20:45:13.859Z [features/analytics] Initialized 0 analytics handlers
app.bundle.min.js?v=5056:182 2021-07-16T20:45:13.861Z [features/base/media] Start muted: video
app.bundle.min.js?v=5056:182 2021-07-16T20:45:13.866Z [features/base/media] Start audio only set to false
app.bundle.min.js?v=5056:182 2021-07-16T20:45:14.064Z [index.web] <HTMLDocument.<anonymous>>:  (TIME) document ready:	 101286.80000001192
go:36 Service worker registered. ServiceWorkerRegistration
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:14.333Z [modules/RTC/RTCUtils.js] Audio output device set to 69dbff5560d1b336b25d47db073e9c63f2bd7d3069cc4534d23b58ff4873d832
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:14.412Z [modules/xmpp/xmpp.js] <D._initStrophePlugins>:  P2P STUN servers:  Array(1)
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:14.424Z [modules/xmpp/xmpp.js] <D.connectionHandler>:  (TIME) Strophe connecting:	 101647
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:14.428Z [modules/RTC/RTCUtils.js] <$.<anonymous>>:  Got media constraints:  {"video":false,"audio":{"autoGainControl":true,"echoCancellation":true,"noiseSuppression":true}}
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:45:14.876Z [modules/RTC/RTCUtils.js] onUserMediaSuccess
app.bundle.min.js?v=5056:182 2021-07-16T20:45:15.793Z [features/base/redux] <Object.persistState>:  redux state persisted. c049f4291191cb378ebe9a3b63238fbd -> 0a2a1ca3a0e43f63c139bf3d7e8292c1
DevTools failed to load source map: Could not load content for chrome-extension://gegfpbhjnhegdnjdkghhnneaocdbbhjp/firefox/browser-polyfill.min.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
DevTools failed to load source map: Could not load content for https://meet.systemscart.com/libs/lib-jitsi-meet.min.map: Load canceled due to load timeout
DevTools failed to load source map: Could not load content for https://meet.systemscart.com/libs/app.bundle.min.map: Load canceled due to load timeout
lib-jitsi-meet.min.js?v=5056:1 WebSocket connection to 'wss://meet.systemscart.com/xmpp-websocket?room=go' failed: 
_connect @ lib-jitsi-meet.min.js?v=5056:1
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.638Z [JitsiMeetJS.js] <Object.getGlobalOnErrorHandler>:  UnhandledError: Strophe: Websocket error [object Event] Script: null Line: null Column: null StackTrace:  Error: Strophe: Websocket error [object Event]
    at Object.r.Strophe.log (https://meet.systemscart.com/libs/lib-jitsi-meet.min.js?v=5056:17:16531)
    at Object.error (https://meet.systemscart.com/libs/lib-jitsi-meet.min.js?v=5056:1:24253)
    at N.Websocket._onError (https://meet.systemscart.com/libs/lib-jitsi-meet.min.js?v=5056:1:63727)
o @ lib-jitsi-meet.min.js?v=5056:10
getGlobalOnErrorHandler @ lib-jitsi-meet.min.js?v=5056:17
window.onerror @ app.bundle.min.js?v=5056:425
callErrorHandler @ lib-jitsi-meet.min.js?v=5056:1
r.Strophe.log @ lib-jitsi-meet.min.js?v=5056:17
error @ lib-jitsi-meet.min.js?v=5056:1
_onError @ lib-jitsi-meet.min.js?v=5056:1
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.639Z [modules/xmpp/strophe.util.js] <Object.r.Strophe.log>:  Strophe: Websocket error [object Event]
o @ lib-jitsi-meet.min.js?v=5056:10
r.Strophe.log @ lib-jitsi-meet.min.js?v=5056:17
error @ lib-jitsi-meet.min.js?v=5056:1
_onError @ lib-jitsi-meet.min.js?v=5056:1
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.640Z [modules/xmpp/xmpp.js] <D.connectionHandler>:  (TIME) Strophe connfail[The WebSocket connection could not be established or was disconnected.]:	 165864.20000004768
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.641Z [modules/xmpp/xmpp.js] <D.connectionHandler>:  (TIME) Strophe disconnected:	 165865
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.642Z [modules/statistics/statistics.js] <Function.b.sendAnalyticsAndLog>:  {"type":"operational","action":"connection.failed","attributes":{"error_type":"connection.otherError","error_message":"The WebSocket connection could not be established or was disconnected.","suspend_time":0,"time_since_last_success":null}}
app.bundle.min.js?v=5056:182 2021-07-16T20:46:18.642Z [connection.js] <a.s>:  CONNECTION FAILED: connection.otherError
o @ app.bundle.min.js?v=5056:182
s @ app.bundle.min.js?v=5056:150
a.emit @ lib-jitsi-meet.min.js?v=5056:1
connectionHandler @ lib-jitsi-meet.min.js?v=5056:1
_stropheConnectionCb @ lib-jitsi-meet.min.js?v=5056:1
_changeConnectStatus @ lib-jitsi-meet.min.js?v=5056:1
_doDisconnect @ lib-jitsi-meet.min.js?v=5056:1
_interceptDoDisconnect @ lib-jitsi-meet.min.js?v=5056:25
_disconnect @ lib-jitsi-meet.min.js?v=5056:1
_onError @ lib-jitsi-meet.min.js?v=5056:1
app.bundle.min.js?v=5056:182 2021-07-16T20:46:18.651Z [features/overlay] <Object.componentDidMount>:  The conference will be reloaded after 25 seconds.
lib-jitsi-meet.min.js?v=5056:10 2021-07-16T20:46:18.668Z [JitsiMeetJS.js] <Object.getGlobalOnErrorHandler>:  UnhandledError: connection.otherError Script: null Line: null Column: null StackTrace:  n/a
o @ lib-jitsi-meet.min.js?v=5056:10
getGlobalOnErrorHandler @ lib-jitsi-meet.min.js?v=5056:17
window.onunhandledrejection @ app.bundle.min.js?v=5056:425
app.bundle.min.js?v=5056:200 Uncaught (in promise) connection.otherError
prejoinStart @ app.bundle.min.js?v=5056:200

looks like this "You have been disconnected" on fresh docker installation - #16 by wolf_mtk