Link crash

Build version: 1.8.0.1
Build date: 1981-01-01 01:01:02
Current date: 2022-02-14 10:36:01
Device: Vsmart Active 1+
OS version: Android 9 (SDK 28)

Stack trace:
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.microsoft.signalr.HubConnection$ConnectionState.getNextInvocationId()' on a null object reference
    at com.microsoft.signalr.HubConnection.invoke(HubConnection.java:667)
    at com.civix.link.LinkApplication$startSignalr$$inlined$let$lambda$1.onComplete(LinkApplication.kt:509)
    at io.reactivex.subjects.CompletableSubject.onComplete(CompletableSubject.java:139)
    at io.reactivex.internal.operators.single.SingleFlatMapCompletable$FlatMapCompletableObserver.onComplete(SingleFlatMapCompletable.java:102)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.next(CompletableConcatArray.java:85)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.onComplete(CompletableConcatArray.java:65)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.next(CompletableConcatArray.java:85)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.onComplete(CompletableConcatArray.java:65)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.next(CompletableConcatArray.java:85)
    at io.reactivex.internal.operators.completable.CompletableConcatArray$ConcatInnerObserver.onComplete(CompletableConcatArray.java:65)
    at io.reactivex.subjects.CompletableSubject.onComplete(CompletableSubject.java:139)
    at com.microsoft.signalr.HubConnection.stopConnection(HubConnection.java:520)
    at com.microsoft.signalr.HubConnection.lambda$start$6$HubConnection(HubConnection.java:365)
    at com.microsoft.signalr.-$$Lambda$HubConnection$EkdUEf1TbIWyqrPvoiabHmwDEmY.invoke(Unknown Source:2)
    at com.microsoft.signalr.WebSocketTransport.onClose(WebSocketTransport.java:91)
    at com.microsoft.signalr.WebSocketTransport.lambda$start$1$WebSocketTransport(WebSocketTransport.java:54)
    at com.microsoft.signalr.-$$Lambda$WebSocketTransport$fejcvJEcEEhKZWxrg8q1qfE4F-g.invoke(Unknown Source:2)
    at com.microsoft.signalr.OkHttpWebSocketWrapper$SignalRWebSocketListener.onFailure(OkHttpWebSocketWrapper.java:98)
    at okhttp3.internal.ws.RealWebSocket.failWebSocket(RealWebSocket.kt:592)
    at okhttp3.internal.ws.RealWebSocket$connect$1.onResponse(RealWebSocket.kt:197)
    at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:519)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
    at java.lang.Thread.run(Thread.java:764)

User actions:
2022-02-14 10:36:00: SplashScreen created
2022-02-14 10:36:00: SplashScreen resumed
2022-02-14 10:36:00: SplashScreen paused