com.avos.avoscloud.im.v2.AVIMException: com.avos.avoscloud.AVException: java.lang.IllegalStateException: Connection Lost

-05 16:40:12.580: D/===AVOS Cloud===(819): LogUtil$avlog->d->28: get push server:wss://rtm54.leancloud.cn:6799/ from master server
11-05 16:40:12.670: E/AVPushConnectionManager(819): Client error.
11-05 16:40:12.670: E/AVPushConnectionManager(819): org.java_websocket.exceptions.InvalidFrameException: bad rsv 4
11-05 16:40:12.670: E/AVPushConnectionManager(819): at org.java_websocket.drafts.Draft_10.translateSingleFrame(Draft_10.java:308)
11-05 16:40:12.670: E/AVPushConnectionManager(819): at org.java_websocket.drafts.Draft_10.translateFrame(Draft_10.java:285)
11-05 16:40:12.670: E/AVPushConnectionManager(819): at org.java_websocket.WebSocketImpl.decodeFrames(WebSocketImpl.java:321)
11-05 16:40:12.670: E/AVPushConnectionManager(819): at org.java_websocket.WebSocketImpl.decode(WebSocketImpl.java:158)
11-05 16:40:12.670: E/AVPushConnectionManager(819): at org.java_websocket.client.WebSocketClient.run(WebSocketClient.java:185)
11-05 16:40:12.670: E/AVPushConnectionManager(819): at java.lang.Thread.run(Thread.java:841)