Invalid JSON suddenly sent on websocket

[SteelBRS]

05:01:05.574 [WebSocketClient-SecureIO-2] ERROR o.s.w.s.a.s.StandardWebSocketHandlerAdapter - Closing session due to exception for StandardWebSocketSession[id=3cad3fe6-295f-9a29-4a47-aaf50c15f1ef, uri=null]
kotlinx.serialization.json.JsonParsingException: Invalid JSON at 73732: Expected ':'
    at kotlinx.serialization.json.internal.StreamingJsonInput.decodeElementIndex(StreamingJsonInput.kt:117)
    at systems.nxgn.feeds.binance.Ticker$$serializer.deserialize(Ticker.kt)
    at systems.nxgn.feeds.binance.Ticker$$serializer.deserialize(Ticker.kt:7)
    at kotlinx.serialization.Decoder$DefaultImpls.decodeSerializableValue(Coders.kt:113)
    at kotlinx.serialization.json.JsonInput$DefaultImpls.decodeSerializableValue(JsonInput.kt)
    at kotlinx.serialization.json.internal.StreamingJsonInput.decodeSerializableValue(StreamingJsonInput.kt:10)
    at kotlinx.serialization.ElementValueDecoder.decodeSerializableElement(ElementWise.kt:141)
    at kotlinx.serialization.internal.ListLikeSerializer.readItem(CollectionSerializers.kt:98)
    at kotlinx.serialization.internal.AbstractCollectionSerializer.readItem$default(CollectionSerializers.kt:70)
    at kotlinx.serialization.internal.AbstractCollectionSerializer.patch(CollectionSerializers.kt:51)
    at kotlinx.serialization.internal.AbstractCollectionSerializer.deserialize(CollectionSerializers.kt:61)
    at kotlinx.serialization.CoreKt.decode(Core.kt:85)
    at kotlinx.serialization.json.Json.parse(Json.kt:121)
    at kotlinx.serialization.json.Json$Companion.parse(Json.kt:161)
    at systems.nxgn.BinanceWebSocketHandler.handleCompleteMessage(BinanceWebSocketHandler.kt:56)
    at systems.nxgn.BinanceWebSocketHandler.handleTextMessage(BinanceWebSocketHandler.kt:40)
    at org.springframework.web.socket.handler.AbstractWebSocketHandler.handleMessage(AbstractWebSocketHandler.java:43)
    at org.springframework.web.socket.handler.WebSocketHandlerDecorator.handleMessage(WebSocketHandlerDecorator.java:75)
    at org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator.handleMessage(LoggingWebSocketHandlerDecorator.java:56)
    at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.handleTextMessage(StandardWebSocketHandlerAdapter.java:113)
    at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.access$000(StandardWebSocketHandlerAdapter.java:42)
    at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$1.onMessage(StandardWebSocketHandlerAdapter.java:70)
    at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$1.onMessage(StandardWebSocketHandlerAdapter.java:67)
    at org.apache.tomcat.websocket.WsFrameBase.sendMessageText(WsFrameBase.java:391)
    at org.apache.tomcat.websocket.WsFrameBase.processDataText(WsFrameBase.java:495)
    at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:294)
    at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133)
    at org.apache.tomcat.websocket.WsFrameClient.processSocketRead(WsFrameClient.java:95)
    at org.apache.tomcat.websocket.WsFrameClient.resumeProcessing(WsFrameClient.java:209)
    at org.apache.tomcat.websocket.WsFrameClient.access$300(WsFrameClient.java:31)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.doResumeProcessing(WsFrameClient.java:186)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:163)
    at org.apache.tomcat.websocket.WsFrameClient$WsFrameClientCompletionHandler.completed(WsFrameClient.java:148)
    at org.apache.tomcat.websocket.AsyncChannelWrapperSecure$WrapperFuture.complete(AsyncChannelWrapperSecure.java:464)
    at org.apache.tomcat.websocket.AsyncChannelWrapperSecure$ReadTask.run(AsyncChannelWrapperSecure.java:331)
    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:748)
05:01:05.577 [WebSocketClient-SecureIO-2] DEBUG o.s.w.s.a.NativeWebSocketSession - Closing StandardWebSocketSession[id=3cad3fe6-295f-9a29-4a47-aaf50c15f1ef, uri=null]
05:01:05.578 [WebSocketClient-SecureIO-2] DEBUG o.s.w.s.h.LoggingWebSocketHandlerDecorator - StandardWebSocketSession[id=3cad3fe6-295f-9a29-4a47-aaf50c15f1ef, uri=null] closed with CloseStatus[code=1011, reason=null]
05:01:05.578 [WebSocketClient-SecureIO-2] WARN  s.n.BinanceWebSocketHandler - Connection closed - status.code=1011

These times are in CET ... so it started about 2 hours ago I'm connecting to wss://stream.binance.com:9443/ws/!ticker@arr