crash, while uploading a dotscene zip

[realXtend]

also an avatar was logging in from elsewhere

12:28:06 - [SCENE]: Received request for wearables of Rauli Puuperä
12:28:06 - [REXAPR]: Sending user 2dc6c1be-2340-4b63-b50a-bcf7081ecc18 appearance to all users. [http://av
/avatar/2dc6c1be23404b63b50abcf7081ecc18]
12:28:07 - [OGS1 USER SERVICES]: Updated user appearance in http://127.0.0.1:8002
12:28:11 - [LLUDPSERVER]: Received a resend of already processed packet #3, type: AgentThrottle
12:28:11 - [LLUDPSERVER]: Received a resend of already processed packet #4, type: AgentWearablesRequest
12:28:11 - [LLUDPSERVER]: Received a resend of already processed packet #5, type: GenericMessage
12:28:13 - [APPLICATION]:
12:28:16 - [LLUDPSERVER]: Received a resend of already processed packet #4, type: AgentWearablesRequest
Region (TaigaSim) #
Unhandled Exception: System.ArgumentOutOfRangeException: Non-negative number required.
Parameter name: count
at System.Buffer.BlockCopy(Array src, Int32 srcOffset, Array dst, Int32 dstOffset, Int32 count)
at HttpServer.HttpClientContext.OnReceive(IAsyncResult ar)
at System.Net.LazyAsyncResult.Complete(IntPtr userToken)
at System.Net.ContextAwareResult.CompleteCallback(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, O
at System.Net.ContextAwareResult.Complete(IntPtr userToken)
at System.Net.LazyAsyncResult.ProtectedInvokeCallback(Object result, IntPtr userToken)
at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32 errorCode, UInt32 numByte
iveOverlapped)
at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes
RLAP)