RSocket and Heroku deploy

How to deploy spring app which use rsocket? I get all time error like this when i try to connect with app:

2020-09-22T20:16:24.789928+00:00 heroku[router]: at=error code=H10 desc=“App crashed” method=GET path="/rsocket" host=<HEROKU_APP> request_id=9c46579c-02db-43de-b035-b713070bacae fwd=“46.175.109.24” dyno= connect= service= status=503 bytes= protocol=https

My server config:

 spring.rsocket.server.transport=websocket
 spring.rsocket.server.mapping-path=/rsocket

Client config:

this.client = new RSocketClient({
        serializers: {
            data: SERIALIZER_DATA,
            metadata: SERIALIZER_METADATA
        },
        setup: {
            // ms btw sending keepalive to server
            keepAlive: 60000,
            // ms timeout if no keepalive response
            lifetime: 180000,
            // format of `data`
            dataMimeType: DATA_MIME_TYPE,
            // format of `metadata`
            metadataMimeType: 'message/x.rsocket.routing.v0',
            payload: {
                data: this.formatter.prepareNicknamePayload(this.myNickname)
            }
        },
        transport: new RSocketWebSocketClient({
            url: wss://<HEROKU_APP>/rsocket
        })
    });

Locally it works good. I deployed app with websocket earlier and it worked but with rsocket i have this problem.