I use appcenter pluggin to upload.But get the error messae:
It works before, but suddenly didn't work. Nothing has changed.

java.net.SocketException: Broken pipe (Write failed)
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
at sun.security.ssl.OutputRecord.writeBuffer(OutputRecord.java:431)
at sun.security.ssl.OutputRecord.write(OutputRecord.java:417)
at sun.security.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:894)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:865)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
at okio.Okio$1.write(Okio.java:79)
at okio.AsyncTimeout$1.write(AsyncTimeout.java:180)
Caused: java.net.SocketTimeoutException: timeout
at okio.Okio$4.newTimeoutException(Okio.java:232)
at okio.AsyncTimeout.exit(AsyncTimeout.java:286)
at okio.AsyncTimeout$1.write(AsyncTimeout.java:184)
at okio.RealBufferedSink.emitCompleteSegments(RealBufferedSink.java:179)
at okio.RealBufferedSink.write(RealBufferedSink.java:42)
at okhttp3.internal.http1.Http1ExchangeCodec$KnownLengthSink.write(Http1ExchangeCodec.java:324)
at okio.ForwardingSink.write(ForwardingSink.java:35)
at okhttp3.internal.connection.Exchange$RequestBodySink.write(Exchange.java:231)
at okio.RealBufferedSink.emitCompleteSegments(RealBufferedSink.java:179)
at okio.RealBufferedSink.writeAll(RealBufferedSink.java:107)
at okhttp3.RequestBody$3.writeTo(RequestBody.java:171)
at okhttp3.MultipartBody.writeOrCountBytes(MultipartBody.java:173)
at okhttp3.MultipartBody.writeTo(MultipartBody.java:114)
at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:69)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:43)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:223)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:221)
at okhttp3.RealCall$AsyncCall.execute(RealCall.java:172)
Caused: io.jenkins.plugins.appcenter.AppCenterException: Upload app to resource unsuccessful
at io.jenkins.plugins.appcenter.AppCenterLogger.logFailure(AppCenterLogger.java:43)
at io.jenkins.plugins.appcenter.task.internal.UploadAppToResourceTask.lambda$uploadApp$0(UploadAppToResourceTask.java:71)
Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to mThor-Android-Builder02
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1788)
at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:356)
at hudson.remoting.Channel.call(Channel.java:998)
at hudson.FilePath.act(FilePath.java:1159)
at io.jenkins.plugins.appcenter.AppCenterRecorder.uploadToAppCenter(AppCenterRecorder.java:193)
at io.jenkins.plugins.appcenter.AppCenterRecorder.perform(AppCenterRecorder.java:180)
at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:80)
at org.jenkinsci.plugins.workflow.steps.CoreStep$Execution.run(CoreStep.java:67)
at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
Caused: java.util.concurrent.CompletionException
at java.util.concurrent.CompletableFuture.encodeRelay(CompletableFuture.java:326)
at java.util.concurrent.CompletableFuture.completeRelay(CompletableFuture.java:338)
at java.util.concurrent.CompletableFuture.uniRelay(CompletableFuture.java:925)
at java.util.concurrent.CompletableFuture$UniRelay.tryFire(CompletableFuture.java:913)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
at io.jenkins.plugins.appcenter.task.internal.UploadAppToResourceTask.lambda$uploadApp$0(UploadAppToResourceTask.java:72)
at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:774)
at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:750)
at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:488)
at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1990)
at retrofit2.CompletableFutureCallAdapterFactory$BodyCallAdapter$2.onFailure(CompletableFutureCallAdapterFactory.java:86)
at retrofit2.OkHttpCall$1.callFailure(OkHttpCall.java:142)
at retrofit2.OkHttpCall$1.onFailure(OkHttpCall.java:137)
at okhttp3.RealCall$AsyncCall.execute(RealCall.java:180)
at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
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)
Finished: FAILURE