9:21:24.313 [EventThread] ERROR com.featureprobe.sdk.server.FeatureProbe-Synchronizer - Connection error: [io.socket.engineio.client.EngineIOException: websocket error]
Event received within 5 seconds: true
Final socket state - ID: null, Connected: false
io.socket.engineio.client.EngineIOException: websocket error
at io.socket.engineio.client.Transport.onError(Transport.java:65)
at io.socket.engineio.client.transports.WebSocket.access400ドル(WebSocket.java:22)
at io.socket.engineio.client.transports.WebSocket1ドル5ドル.run(WebSocket.java:107)
at io.socket.thread.EventThread2ドル.run(EventThread.java:80)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: java.net.ProtocolException: Expected HTTP 101 response but was '404 Not Found'
at okhttp3.internal.ws.RealWebSocket.checkUpgradeSuccess(RealWebSocket.java:224)
at okhttp3.internal.ws.RealWebSocket1ドル.onResponse(RealWebSocket.java:195)
at okhttp3.RealCall$AsyncCall.execute(RealCall.java:174)
at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
... 3 more