java.lang.IllegalStateException: cannot upload group image, failed on all servers.

[git-zt]

之前使用一切正常
最近开始无法发送图片，可以发送文字
发送图片时报错如下

2020-12-13 15:20:07 V/Net 3532477954: Send: ImgStore.GroupPicUp
2020-12-13 15:20:07 V/Net 3532477954: Recv: RequireUpload(fileId=2850419775, uKey=[-15, 19, -41, 43, -125, 72, -11, -95, 28, 107, 83, 122, 60, 82, 105, -101, 104, -93, -45, -122, -70, 96, -102, -5, -37, 109, 70, -89, -58, 20, 7, 74, 111, 79, 23, -115, 56, -128, 8, 22, -116, -57, 17, -50, 47, 91, -83, 32, -42, -21, -124, -81, 99, 44, 83, -33, 14, -43, 101, 103, 124, -103, -61, 75, 111, -70, 43, 53, 1, -41, -119, -93, 109, 96, -96, -8, 48, -99, 120, -123, 16, -40, 62, 25, 94, 119, 40, 127, 1, 25, -81, 73, 26, -116, 123, -82, 14, -73, 117, -86, 92, -28, 48, 121, -23, -39, 28, -114, -54, -55, -108, 41, 46, 5, 94, 69, -70, 89, -34, -104, -97, -29, -93, 104, -73, -95, 120, -120])
2020-12-13 15:20:07 V/Net 3532477954: [Highway] Uploading group image to 120.241.186.254:443, size=242 B
2020-12-13 15:20:08 V/Net 3532477954: [Highway] Uploading group image to 113.96.232.87:8080, size=242 B
2020-12-13 15:20:08 V/Net 3532477954: [Highway] Uploading group image to 123.150.76.168:80, size=242 B
2020-12-13 15:20:08 V/Net 3532477954: [Highway] Uploading group image to 157.255.243.94:443, size=242 B
java.lang.IllegalStateException: cannot upload group image, failed on all servers.
        at net.mamoe.mirai.qqandroid.network.highway.HighwayHelper.uploadImageToServers(HighwayHelper.kt:114)
        at net.mamoe.mirai.qqandroid.network.highway.HighwayHelper$uploadImageToServers$2.invokeSuspend(HighwayHelper.kt)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.internal.ScopeCoroutine.afterResume(Scopes.kt:32)
        at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:113)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
        at kotlinx.coroutines.flow.internal.SafeCollector.invokeSuspend(SafeCollector.kt:37)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
        at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:274)
        at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:84)
        at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:59)
        at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
        at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:38)
        at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
        at net.mamoe.mirai.contact.ContactJavaFriendlyAPI$DefaultImpls.uploadImage(ContactJavaFriendlyAPI.kt:379)
        at net.mamoe.mirai.contact.Contact.uploadImage(Contact.kt:38)
        at demo.BlockingTest$2.onGroupMessage(BlockingTest.java:309)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at net.mamoe.mirai.event.internal.EventInternalJvmKt$registerEvent$15$1.invokeSuspend(EventInternalJvm.kt:182)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:738)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
Caused by: java.lang.IllegalStateException: highway transfer failed, error 82
        at net.mamoe.mirai.qqandroid.network.highway.HighwayHelper$uploadImage$$inlined$use$lambda$1.emit(Collect.kt:149)
        at net.mamoe.mirai.qqandroid.network.highway.HighwayHelper$uploadImage$$inlined$use$lambda$1$1.invokeSuspend(Unknown Source)
        ... 22 more
2020-12-13 15:20:08 E/Bot 3532477954: An exception was thrown under a coroutine of Bot
java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at net.mamoe.mirai.event.internal.EventInternalJvmKt$registerEvent$15$1.invokeSuspend(EventInternalJvm.kt:182)
        at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
        at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:56)
        at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:571)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:738)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:678)
        at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:665)
Caused by: java.lang.NullPointerException: Parameter specified as non-null is null: method net.mamoe.mirai.contact.Contact.sendMessage, parameter message
        at net.mamoe.mirai.contact.Contact.sendMessage(Contact.kt)
        at demo.BlockingTest$2.onGroupMessage(BlockingTest.java:315)
        ... 11 more

请问是怎么回事，如何解决呢？