机器人经常不知道为啥掉线了
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机器人没干别的，只是用来跟海外群友的电报群互相转发用的。
会突然掉线，掉线时的日志如下，请问应该怎么办？
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An exception occurred when processing event. Subscriber scope: '<unnamed>'. Broadcaster scope: 'Bot 1992588307.EventDispatcher'
java.lang.IllegalStateException: Send message failed: MessageSvcPbSendMsg.Response.Failed(resultType=46, errorCode=0, errorMessage=)
at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender.sendSinglePacket(GeneralMessageSenderProtocol.kt:150)
at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender.access$sendSinglePacket(GeneralMessageSenderProtocol.kt:50)
at net.mamoe.mirai.internal.message.protocol.impl.GeneralMessageSenderProtocol$GeneralMessageSender$sendSinglePacket$1.invokeSuspend(GeneralMessageSenderProtocol.kt)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.internal.ScopeCoroutine.afterResume(Scopes.kt:33)
at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:102)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
at kotlinx.coroutines.DispatchedTaskKt.resume(DispatchedTask.kt:178)
at kotlinx.coroutines.DispatchedTaskKt.dispatch(DispatchedTask.kt:166)
at kotlinx.coroutines.CancellableContinuationImpl.dispatchResume(CancellableContinuationImpl.kt:397)
at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl(CancellableContinuationImpl.kt:431)
at kotlinx.coroutines.CancellableContinuationImpl.resumeImpl$default(CancellableContinuationImpl.kt:420)
at kotlinx.coroutines.CancellableContinuationImpl.resumeWith(CancellableContinuationImpl.kt:328)
at kotlinx.coroutines.ResumeAwaitOnCompletion.invoke(JobSupport.kt:1413)
at kotlinx.coroutines.JobSupport.completeStateFinalization(JobSupport.kt:318)
at kotlinx.coroutines.JobSupport.tryFinalizeSimpleState(JobSupport.kt:295)
at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:856)
at kotlinx.coroutines.JobSupport.makeCompleting$kotlinx_coroutines_core(JobSupport.kt:806)
at kotlinx.coroutines.CompletableDeferredImpl.complete(CompletableDeferred.kt:92)
at net.mamoe.mirai.internal.network.handler.NetworkHandlerSupport.collectReceived$mirai_core(NetworkHandlerSupport.kt:102)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline.processBody(CommonNetworkHandler.kt:160)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline.access$processBody(CommonNetworkHandler.kt:102)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline$1$3$1.invokeSuspend(CommonNetworkHandler.kt:126)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline$1$3$1.invoke(CommonNetworkHandler.kt)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline$1$3$1.invoke(CommonNetworkHandler.kt)
at kotlinx.coroutines.intrinsics.UndispatchedKt.startCoroutineUndispatched(Undispatched.kt:55)
at kotlinx.coroutines.CoroutineStart.invoke(CoroutineStart.kt:112)
at kotlinx.coroutines.AbstractCoroutine.start(AbstractCoroutine.kt:126)
at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:56)
at kotlinx.coroutines.BuildersKt.launch(Unknown Source)
at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:47)
at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source)
at net.mamoe.mirai.internal.network.handler.CommonNetworkHandler$PacketDecodePipeline$1.invokeSuspend(CommonNetworkHandler.kt:126)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:497)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)同求，机器人突然就不行了，周一晚上还在运行的，什么都没动，突然就挂掉了
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就是群消息和私聊没法回应，不清楚是为什么，突然间的事情
